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Author
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Topic: Which Holley to use?
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Tony Soprano
Journeyman Posts: 36
From: Tacoma,WA USA
Registered: Jul 2005
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posted 01-26-2006 07:31 PM
 
I put an edelbrock 1406 on my 289 A code a little over a year ago, and have been generally happy with it over the tired 4300 I replaced it with. But I have a couple of issues with it; first, my A/C bracket that goes to the manifold won't fit with the edelbrock. And, I just changed the manifold and carb on a friend of mines 68 Cougar to a stock 4bbl manifold with a basic 600cfm holley. His stock 302 came alive with this combo, making mine seem weak!
So I'm thinking of going with a Holley and I saw a 570cfm Street Avenger on e-bay brand new for $282. Is this a better carb than the basic Holley my friend bought from Shuck's?
I'm staying with the stock manifold for now because my car is almost totally stock and I do show it occasionally. I get enough trouble from people for having Cragars on it!
So which Holley do I need?
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trashline
Gearhead Posts: 2230
From: Levittown, Pa
Registered: Dec 2003
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posted 01-27-2006 10:02 AM
i plan to go with a holley 600 from summit. with mechincal secondarys. this is going on a stock bottom end with edelbrock performer heads and the rpm intake. ------------------
88 thunderbird TC 2.3L
Gillis at 18 psi, walbro 255 lph fuel pump, Kirban at 39 psi, 3.73 8.8" rear, rebuilt head, brand new IHI 66 mustang 200ci 3 speed
Holley weber two barrel, msd 6A, 3.5 gears, 3.03 v8 three speed trans. 68 Fairlane 289 w/ auto
rusting away motor is going in the mustang 79 f150 300 3 onda tree
awaiting a new transmission
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70SportsRoof
Gearhead Posts: 1064
From: Orange County, CA
Registered: Dec 2001
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posted 01-27-2006 01:16 PM
I like my Avenger. I bought a new Street Avenger 670 for my mild 351W from a fellow M&M member, bolted it on, and it was set to go. Replaced a recently rebuilt Carter 625 with it and what a diff. The Avenger is a good carb to go with, I'd recommend it.------------------
Gary M
'70 Mustang 63b SportsRoof
'95 Mustang GT coupe
and 5 more classic Fords
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Tony Soprano
Journeyman Posts: 36
From: Tacoma,WA USA
Registered: Jul 2005
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posted 01-27-2006 11:24 PM
Thanks for the replies.
I guess what I'm looking for is what is the difference between a 4160 holley and a street avenger. Is there something that makes the street avenger a better carb?
It also seems odd that they are rated at 570,670, etc. instead of the normal 600, 750, etc. CFM.
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Pierre
Gearhead Posts: 661
From: Near Paris, France
Registered: Apr 2002
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posted 01-28-2006 07:58 AM
The Avenger serie is more user friendly (easier adjustments). Considering your engine, a 570 with Vac secondaries (like the avenger)is probably an excellent choice.
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Fastymz
Moderator Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001
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posted 01-28-2006 02:27 PM
quote:
Originally posted by Pierre:
The Avenger serie is more user friendly (easier adjustments). Considering your engine, a 570 with Vac secondaries (like the avenger)is probably an excellent choice.
I agree go with the 570 if you plan to keep it mostly stock. They are great looking carbs too. 
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oddly obsessed with big scoops on little Mustangs HOOD HACKERS DELIGHT!
My Pics
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Tony Soprano
Journeyman Posts: 36
From: Tacoma,WA USA
Registered: Jul 2005
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posted 01-28-2006 06:16 PM
OK, I'm still on the fence here....
The street avenger does look nicer, has the sight glass for the float adjustment, it's a 570 vs. the 600 (still not clear about that small of a difference, and why).
It also appears to have seperate inlets for the primary and secondary bowls, not so sure that's a real plus for me.
Still, being rather frugal (or cheap) the standard 600 is appealing because I can get one for over $100 less.
Is the avenger worth the extra $100?
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Fastymz
Moderator Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001
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posted 01-28-2006 06:39 PM
The street avenger gives you external float adjustment,easy secondary spring changes,and slight plugs. I think it's well worth the $100 thats just my opinion.http://holley.com/types.asp?type=7 http://holley.com/types.asp?type=9
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oddly obsessed with big scoops on little Mustangs
HOOD HACKERS DELIGHT!
My Pics [This message has been edited by Fastymz (edited 01-28-2006).]
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Scott H
Gearhead Posts: 1480
From: Chicago area
Registered: Mar 2005
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posted 01-28-2006 06:55 PM
Use those sight plugs for adjustment purposes, but then change them to the regular brass plugs.
The plastic plugs have been known to crack!
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Tony Soprano
Journeyman Posts: 36
From: Tacoma,WA USA
Registered: Jul 2005
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posted 01-28-2006 08:26 PM
OK, I'm just about sold, thanks for the input guys!
Still not crazy about having to split the fuel line, though.
And for a car that only gets about 1500 miles a year, I doubt that the sight plugs will crack for a long time. But I'll keep an eye on that.
How about the effect of heat on a holley. I've noticed my edelbrock seems to have a warm start problem when it's warm outside. I think it may be boiling the gas out of the float bowls. I have the stock spacer in there, but I was thinking about putting in a heat spacer gasket I happen to have for the edelbrock on the bottom of the stock spacer. Should I bother?
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70SportsRoof
Gearhead Posts: 1064
From: Orange County, CA
Registered: Dec 2001
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posted 01-28-2006 08:36 PM
I can't comment on the warm start prob since I haven't run into that yet. But if you go with the Avenger, there is a little kit you need to get for the automatic trans kickdown, if your car has an auto. You can get it from Holley.------------------
Gary M
'70 Mustang 63b SportsRoof
'95 Mustang GT coupe
and 5 more classic Fords
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Tony Soprano
Journeyman Posts: 36
From: Tacoma,WA USA
Registered: Jul 2005
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posted 01-28-2006 11:39 PM
Thanks again for the insight and advice, guys.
I went ahead and ordered the 570 street avenger for $283 shipped.
Of course, if I'm not happy I'll have to hold you all responsible! 
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Scott H
Gearhead Posts: 1480
From: Chicago area
Registered: Mar 2005
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posted 01-29-2006 12:33 AM
quote:
Originally posted by 70SportsRoof:
there is a little kit you need to get for the automatic trans kickdown, if your car has an auto.
If he has a 289 A code in a 65, 66, or 67 they don't use a rod from the carb to the trans as a kickdown. 65 uses a bellcrank type linkage on the manifold and 66/67 use a cable at the bottom of the accelerator arm (assuming stock linkage and stock c4 trans).
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Fastymz
Moderator Posts: 22791
From: Reno Nv M&M #1240
Registered: Apr 2001
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posted 01-29-2006 04:01 PM
quote:
Originally posted by Tony Soprano:
Thanks again for the insight and advice, guys.
I went ahead and ordered the 570 street avenger for $283 shipped.
Of course, if I'm not happy I'll have to hold you all responsible!
Ok if you don't like it, We'll refund you for the free opinions.  ------------------
oddly obsessed with big scoops on little Mustangs HOOD HACKERS DELIGHT!
My Pics
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