bogging problem

[tdag]

1982 camaro 5.0 the car has a rochester quardrajet, a holley high rise manifold single plane and a cam that is one step up from stock, the car runs good until I open the secondarys then it totally boggs out. I replaced the rochester with a new holley 670 street avenger and its does exactly the same thing, totally boggs out when I open the secondarys can anyone help me with this problem? thanks

[Morley]

Probably the secondary metering rods. Either too much fuel or too little when the secondaries are opened.

[michaelmeck]

I agree with the above. Also, Does the carb have vaccume or manual secondarys? if they are manual they may be opening at too low rpms and flooding the engine

[Vortec350S10]

If this problem is happening with both carbs, I would bet you are having a fuel pump problem. Hook up a fuel pressure gauge under the hood and rev it up with your hand and see if it is the problem. You should have at least 3-4 psi at WOT.

[tdag]

Originally Posted by Morley

Probably the secondary metering rods. Either too much fuel or too little when the secondaries are opened.

sorry its not manual its vaccumn

[demon9766]

Originally Posted by tdag

sorry its not manual its vaccumn

Well if both carbs are doing the same thing it is your fuel delivery .I would get a better pump.