I have a Holley 750cfm dual feed carb and recently have had problems with it since I upgraded intake and camshaft,

At about 1/4 throttle it has a dead spot, im not sure what to do my mechanic seems to think I need a double pumper but im not sure.

I have a electric fuel pump with regulator on a 350 with some add ons.

So my question is have any of you had this problem before or any tips or suggestions.

Also Ive never been a edelbrock guy but is it time to consider?

Thanks

 

Do you have the standard 30cc accel. pump or the larger 50cc.?

 

I have the standard one I suppose because have not message with the carb its self just a new power value. Do you think I need a larger one like 50cc

 

Certainly a good place to start. Also Holley has several accellarator cams that control when and how much fuel is injected off idle.

You can get Holley performance books from Amazon for as little as $6.00.