Ok so I just got this 84' gslse it has RB intake with Holley 650 double pumper RB full exhaust the internals I'm not for sure what has been done but it has been ported Atkins apex seals matched rotors is what I was told by my friend I got the car from still need to go talk to the guy that built it to get the real story on it. With that said it runs great revs good as long as I don't go WOT if I do it bogs for a second or two then picks up any ideas? Thanks in advance.

 

I'm not a carb guy, but it sounds like you either don't have enough accel pump, or too much.

 

Is that from a dead stop or while driving ? does it have mechanical or vacuum secondaries .

Quite often fuel delivery is a problem . Could be a ton of things but you need to start somewhere .

Start by checking the float height . make sure you don't have any vacuum leaks, and let us know .

 

well since it's a double pumper, i'd be looking at that second pumper. it may not be getting it's shot from the AP on the bottom of the bowl.

 

it is manual secondaries and yes its getting its shot and it does it if i just go from an idle to wot if i run it up to around 3k i can wot it and no problems. i have one thing im going to try since i over looked it while thinking about it untill stareing at it today and the vaccum advance is not hooked up so this is where im starting

 

ok so i hooked up the vacuum advance with no change

 

That thing will need a good healthy shot of fuel not just a little pissy bubbly squirt
and they need it right when the throttle plates activate not before or after , they should keep squirting fuel until the throttle is pretty much fully open .

Have you checked the floats to make sure the bowls are full when running .The fuel should just kinda jiggle out on the threads .

Did you check to see if the vacuum advance works when vacuum is applied or did you just hook it up ? I not saying they don't help do the job but IMO the old vacuum advance on most vehicles are poor at best

 

ok so i got the cam kit for the carb to change when and how much the pump is opened up. It seems to be better but i see some more carb tuning in my future. Oh and i went and talked to the guy that built the engine in my car so here goes.....
13B with 12A irons
said he thinks the rotors are 12lb rotors
street port
atkins seals
racing beat intake
holey 650 double pumper
racing beat full exhaust