HELP Carb recommendations for 327 Small Block
06-08-2008, 07:28 PM
#1
Racer
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HELP Carb recommendations for 327 Small Block
Need recommendations for a new carb. 64 327/250. Pretty much stock except for the cam. The carb on the car is an older Holley. No matter what I do I can't seem to get good performance. Runs to high, too low, too rich, stalls. I've decided to go ahead and get a new one. Please help. Guys - tell me what I should get.
06-08-2008, 07:42 PM
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06-08-2008, 09:40 PM
#5
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Why not replace it with a new Holley of about 585 cfm? I think they make some type of street model now. No smog, electric choke. Pretty cheap.
Anything else and you'll have to change the manifold.
Anything else and you'll have to change the manifold.
06-09-2008, 12:39 PM
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Need recommendations for a new carb. 64 327/250. Pretty much stock except for the cam. The carb on the car is an older Holley. No matter what I do I can't seem to get good performance. Runs to high, too low, too rich, stalls. I've decided to go ahead and get a new one. Please help. Guys - tell me what I should get.
06-09-2008, 01:49 PM
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Racer
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03-18-2009, 07:08 PM
#13
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IMO toss the Holley bound manifold and get one for a Carter, especially
if you like original air cleaners, or an Edelbrock if you want to use an air
cleaner with a larger opening.
I use an old Carter with a Chevy style front fuel entry on a 65 Corvette
iron manifold on my 350cid mule engine.
The fuel line is solid steel to the flexible frame line connection with an
insulation wrap where it passes behind the heater and rad hoses.
The 3/8 NAPA fuel filter is in the connection between the tank and the
frame line. The A-C idle support solenoid on the far side of the carb is
generic FLAPS and I made the bracket for it out of aluminum.
All 66 Corvettes came with Holleys but they leak too much. Edelbrocks
have ugly fuel inlet positions and won't accept old Corvette air
cleaners, but I would prefer one to a Holley.
if you like original air cleaners, or an Edelbrock if you want to use an air
cleaner with a larger opening.
I use an old Carter with a Chevy style front fuel entry on a 65 Corvette
iron manifold on my 350cid mule engine.
The fuel line is solid steel to the flexible frame line connection with an
insulation wrap where it passes behind the heater and rad hoses.
The 3/8 NAPA fuel filter is in the connection between the tank and the
frame line. The A-C idle support solenoid on the far side of the carb is
generic FLAPS and I made the bracket for it out of aluminum.
All 66 Corvettes came with Holleys but they leak too much. Edelbrocks
have ugly fuel inlet positions and won't accept old Corvette air
cleaners, but I would prefer one to a Holley.
Last edited by magicv8; 03-18-2009 at 09:27 PM.
03-18-2009, 08:45 PM
#14
Pro
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Carb Recommendation
I just installed an Edelbrock 1406 on my 300HP/327, runs like a top, great gas mileage. As far as the fuel line inlet goes Edelbrock offers a offset piece that lowers the inlet line just above the base plate if front of the Carb and includes a billet inline filter, piece of cake to hook up. You can see it below.
03-18-2009, 09:25 PM
#15
Pro
FYI, An Edelbrock carb, or the AFB, have dual bolt patterns. The wider set of holes fit the Holley intake, and The inner set may fit the original Rochester 4V intake. A 600 cfm carb would be as big as you should go. Rich
03-18-2009, 09:30 PM
#16
Burning Brakes
Try a Holley 4160 Electric Choke Carburator...
I put one in my 1966 small block along with an Edelbrock intake manifold and it has made all the difference in the world. My car runs great and I even get 16-18 MPG on the highway!
03-19-2009, 10:27 AM
#17
Race Director
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C2 of the Year Finalist - Modified 2020
Lot of good recommendation here. The street Avenger may be the best. Question, didn't you have the serious engine problem back in Jan. Had to pull the motor and get the engine builder involved? What's new? 
Dennis
Dennis
