The car is a camaro, engine is a 350 and carb is a quadrajet. As far as Jeff's reply I don't understand what he's saying?? If the fuel pressure is off, then what should it be??

it has been 7lbs. When it comes out of the water box it has no hesitation, no stumble, it's just when u stage and go up on rpm's and release the trans brake button it hesitates and when it comes down and planes out, it runs great!!

Do you think it could be a fuel pressure issue?? Thanks for any response...