would like opinions or ideas for what to do for performance ive already done 4"10 gears auburn posi corvette survo eletric fans diablo sport tuning trottle body spacer k&g gen 2 cold air 6"rear 3"front lowering kit 15inch weld wheels custom grind calipers 295/50/15 tires

 

How in the world did you get 15" rims to fit over the brakes?

 

So why the "angry" emoticon?

 

Oh, welcome to the site by the way. These trucks really come alive with a good exhaust. Id get some headers, O2 sims, cut outs, and get rid of the cats.

 

i forgot to say ive got a 3 inch inlet & outlet flomaster on the truck but ive also got a ptc ls1 2800 stall torqe converter that i havent put in yet the best time i got in 1/8 mile is8.99 with out the converter thats wy the emoticon i want a heads cam package but not sure about which one to go with

 

i got my wheels to fit by grinding my calipers about an 1/8 to 1/16 inch off the rear the frony i had to cut my bottom spindle bolt off flat at the locking nut

 

do headers really work on these trucks how much hp gain should i expect

 

Yes, headers work extremely well on the trucks. Especially after some bolt-ons and of course even more so with internal mods. Stay away from the shorties and go with long tubes like ASM's or TOG's.