Which carburetor to install
I've rebuilt the 327 that was in my 67 camaro. I've installed an Edelbrock Performance 7107 intake manifold. Any recommendations for a good carburetor to use with the Edelbrock? This is not for racing.
These days I think that it's important to *not* over-carb the car.
There's a certain temptation to bolt on a bigger Holley (or whatever).
But what happens is the velocity of the gasoline mist and the air in the intake manifold slows down.
That mixture's momentum keeps putting more mixture into the cylinder even when the piston is working its way up, until the camshaft shuts down the intake valve.
The result of over-carbing is it stumbles and stalls at traffic lights, and the lower end performance is pretty soggy.
I'm using the stock Holley on a 454 Chevy and it's about 700 CFM, and that's really all it needs. Nice performance on the low, middle, top, and illegal RPM's !
I also agree the Q-jet is a nice carb. Take a look at the primary throttle valves. Much smaller openings than the secondaries. Why? Air velocity.
-- thanks,
Dave
There's a certain temptation to bolt on a bigger Holley (or whatever).
But what happens is the velocity of the gasoline mist and the air in the intake manifold slows down.
That mixture's momentum keeps putting more mixture into the cylinder even when the piston is working its way up, until the camshaft shuts down the intake valve.
The result of over-carbing is it stumbles and stalls at traffic lights, and the lower end performance is pretty soggy.
I'm using the stock Holley on a 454 Chevy and it's about 700 CFM, and that's really all it needs. Nice performance on the low, middle, top, and illegal RPM's !
I also agree the Q-jet is a nice carb. Take a look at the primary throttle valves. Much smaller openings than the secondaries. Why? Air velocity.
-- thanks,
Dave
I had a 327 with a turbo 400 behind it and I used a 600 double pumper. I tried the victor jr manifold but it would fall on its face at idle. I ended up going with a 600 do with the rpm air gap and it was great. Add some headers to let it breath and you will have tons of power.
These days I think that it's important to *not* over-carb the car.
There's a certain temptation to bolt on a bigger Holley (or whatever).
But what happens is the velocity of the gasoline mist and the air in the intake manifold slows down.
That mixture's momentum keeps putting more mixture into the cylinder even when the piston is working its way up, until the camshaft shuts down the intake valve.
The result of over-carbing is it stumbles and stalls at traffic lights, and the lower end performance is pretty soggy.
I'm using the stock Holley on a 454 Chevy and it's about 700 CFM, and that's really all it needs. Nice performance on the low, middle, top, and illegal RPM's !
I also agree the Q-jet is a nice carb. Take a look at the primary throttle valves. Much smaller openings than the secondaries. Why? Air velocity.
-- thanks,
Dave
There's a certain temptation to bolt on a bigger Holley (or whatever).
But what happens is the velocity of the gasoline mist and the air in the intake manifold slows down.
That mixture's momentum keeps putting more mixture into the cylinder even when the piston is working its way up, until the camshaft shuts down the intake valve.
The result of over-carbing is it stumbles and stalls at traffic lights, and the lower end performance is pretty soggy.
I'm using the stock Holley on a 454 Chevy and it's about 700 CFM, and that's really all it needs. Nice performance on the low, middle, top, and illegal RPM's !
I also agree the Q-jet is a nice carb. Take a look at the primary throttle valves. Much smaller openings than the secondaries. Why? Air velocity.
-- thanks,
Dave
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