|
|
Holley 3310-2 750 cfm OR Holley Street Avenger 770 cfm?
#865333
11/28/10 06:32 AM
11/28/10 06:32 AM
|
Joined: Mar 2005
Posts: 1,445
Sterling Heights, Michigan 483...
daniel_depetro
OP
pro stock
|
OP
pro stock
Joined: Mar 2005
Posts: 1,445
Sterling Heights, Michigan 483...
|
I have both a used Holley 3310-2 750 cfm 4160 carburetor and an original Holley Street Avenger 770 cfm carburetor #0-80770 that I bought new and just installed this past summer.
I currently have the Holley Street Avenger 770 cfm carburetor on my 1968 HP 440 that is in my 1968 Coronet coupe 4-speed.
The Holley 3310-2 was on the car as purchased.
Would the Holley 3310-2 be a "better" (more performance orientated) carburetor?
*I will be purchasing the ~$50.00 secondary metering block conversion to replace the original metering plate on the 3310-2.
**Both carburetors will be put to use, I'd just prefer the "better" carburetor goes on the 440 in the Coronet.
*** Both carburetors are basically 750 cfm, square bore, vacuum secondary units. The Street Avenger has electric choke.
I've been toying with the idea of removing the entire air horn on both carburetors.
1969 Dodge Super Bee A12 (440 Six Pack, 4-speed, Dana 60 4.10)
1972 Plymouth Road Runner (400, 4-speed, 8.75" 3.23)
1974 Plymouth Duster 360 (360, 4-speed, 8.75" 3.23)
|
|
|
Re: Holley 3310-2 750 cfm OR Holley Street Avenger 770 cfm?
[Re: torkrules]
#865335
11/28/10 12:42 PM
11/28/10 12:42 PM
|
Joined: Jan 2003
Posts: 3,719
Space Station #5
471Magnum
master
|
master
Joined: Jan 2003
Posts: 3,719
Space Station #5
|
On paper, the Avenger is certainly the better carb. They are 4150s with secondary jets, electric choke and quick change secondary springs. The 3310s lack these features (although they can be retrofitted). I've used them before with good results on a couple of different applications.
There have been quality issues with the Avengers. Like many carburetor quality issues though, I'm sure many of these are due to installers knowing enough about tuning to be dangerous.
Holley also markets these as "bolt on and go carb". I think they are oversold in that perspective. Every carb can use a little tweaking to be optimized for a particular application. Holleys probably more so than competitors' carbs, but you can get a Holley way out of whack really quickly if you don't know what you're doing.
-Jim
I can fix it... my old man is a television repairman.
He's got the ultimate set of tools... I can fix it.
Currently Mopar-less
|
|
|
Re: Holley 3310-2 750 cfm OR Holley Street Avenger 770 cfm?
[Re: DaytonaTurbo]
#865337
11/29/10 01:19 PM
11/29/10 01:19 PM
|
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
They are the same carb with a few changes like was already mentioned, they have quick change secondary springs and a secondary metering block, very common for people to add them on a 3310 so just use the avenger that already has the goodies on it, or better yet get a thermo-quad.
PS the only holley carb I ever had that ran good was a 770 street avenger and it worked great on my 318, it never got close to the miledge as the thermo-quad but it ran good.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
Re: Holley 3310-2 750 cfm OR Holley Street Avenger 770 cfm?
[Re: daniel_depetro]
#865338
11/29/10 01:48 PM
11/29/10 01:48 PM
|
Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
|
master
Joined: Oct 2003
Posts: 7,506
Az
|
They will both work equally well in your application. Pick the one with the least wear in the throttle shaft area. DON'T cut the top off of ether carb. These are not race carbs, and you will just ruin their resale value( for street use)with very little cfm gain.
Fastest 300
|
|
|
|
|
|
|
