ggk

iTrader: (1)

he is having some problems. we put a mild carb in it and a 4 barrel on his stock pontiac 350 in his 76 firebird. but it has no acceleration. untill you you hit about 35+ and mash the pedal. but if you mash the pedal befor that it bogs and seems like it wants to shut off.
this is on a generic rebuild quadrajet.

and help is apreciated and pictures would help us out.

F-Bobby

iTrader: (1)

i assume you mean you put a mild cam in it. check your timing and make sure you didnt put the cam in wrong. you also may wanna pull that carb apart and check to see that there isnt something blocking one of your primary jets.

Captainofiron

iTrader: (1)

I agree check the timing, both at the cam and at the distributor, An easy way to check the timing at the cam, is pull off the spark plug on 1 piston and the valve cover and check to see if the motion of the pushrods coincide with the piston movement. if not you are going to have to take everything off again and reinstall that bad boy.

ggk

iTrader: (1)

figured it out guys thanks.
his brake booster went bad a we were losing vacume and that caused the secondaries not to open.

Captainofiron

iTrader: (1)

Yep, thatll do it. ALot of people forget to check the hose going to the Brakes. that is such a big problem. Glad you got her running good

ggk

iTrader: (1)

the brake booster really helped but now the tune is off and we think the carb is wierd. the secondaries still dont come on at the right time.