Well, after the head swap, yank converter, and the addition of electric fans I put down 312.50 hp and 328.45 tq. I think theres a little more in it with some tuning. My old numbers were 298.73 hp and 295.84 tq.

 

Could you list your mods again mate.

 

02 silverado 5.3, k&n fipk, Asp underdrive pulley, comp 212/218 .522/.529 114 lsa, Futral motorsports mail order tune, ASM headers, stock Y pipe and single Big magnaflow exhaust, High flow cats, built transmission w/ shiftkit, 4.10 gears, yank tt3000, electric fans. Converter was unlocked.

 

Awesome!!

Congrats!

 

cool,
Looks like i don't need to go now.

Thats with the new ported heads???

 

wow, so with tuning, you and 12sec, will be about dead even at the dyno peaks.

 

Thats with the new ported heads

 

have the graph? 33ft lbs at the rear wheels is awesome.

 

unlocked converter who did that for you?????????!!!!!!!! thanx in advance for the help

 

fms ported his heads for him.

sry reaper, just thought i'd give him a quick response.