when I excellerate my 71 corvette 350 it seems as if I am not getting a full peddle to the floor and the rpms are not there. Can't pull any type of hole shot. ive checked under the pedal and there is

Have you checked where the gas pedal cable attaches to the carb? Might have became loose and moved some. Check to see if it needs adjusting.

I had this problem when I was putting my 69 Corvette back together after a rebuild. I had obstructions under the peddle,(new carpets and sound/heat shield) and the cable needed replacement as it was frayed inside the sleeve. As stated above, look and see if the carburetor opens all the way. It may be the bracket that holds the carburetor end is moving, lose or not holding the cable (Lose adjustment/holding the cable still) nut. Has the cable slipped at the carburetor? It is not expensive to replace the cable, but you may put a bloop of graphite oil on the cable opening, not WD-40 as it will gum up the cable.