helpot a carb problem
 

just got an 85 gt and its my first carbed 5.0. the problem is that it has a dead spot in the 130 to 1800 rpm range. also when im cusin in second gear and flor it at about 3000 it doesnt do anything for a second or two and then it chirps the tires and takes off. any help would be good. the caris stock except offroad h-pipe and flowmsters.

You've got a problem with the accelerator pump. Start by inspecting it for leaks, then make sure it's adjusted properly. You want it set up so that it squirts at the very slightest touch, yet isn't bottomed out before you reach WOT. What color accelerator pump cam does it have, and which hole is the screw in?

stock carb?

is it vacuum or mechanical secondaries? check that also to see if it is working properly

also might have some dirt in one of the squirters...

I agree with PKRWUD. Someone may have changed the accelerator pump cam on you. When you get it right it should not hesitate at all.
An excellent book on the Holleys is;

Holley Rebuilding & Modifying
by Jeff Williams

It is an S-A Design book and it describes the Holley very well. It also has a "power tuning" section which is great!