Quote Originally Posted by myzterray View Post
oh ok nice. right now theres a stroker in there with 4200 miles on it..yes 4200...but im getting 4-6 mpg..i want to turn this truck back into a daily driver so i think with the new engine ill get some better mpg and still some pretty good power. here are my plans for the lm7:

ls3 intake
tr 224 or 228 cam
springs? idk...
rockers idk...
3000 stall
long tube headers
performance tune..
goal= 350+ rwhp
then later add a 100 shot of nos
wow, a 100 shot? lol. ok, so i was talking a some 75 year old guy, and i guess he was one of the original hot rodders, and i learned A LOT from him- balacne the pistons (i can tell you how), get the lightest valves possible, same with the pushrods and rockers, get springs with just enough tention to close the valve, you want as little tention as possible, port and polish the heads, balance the valves, and where the fuel goes in is a small tube (i think is what he told me) and that needs to be as smooth at possible, so the fuel is more of a mist when it gets in the combustion chamber. he also told me how to rase the compresion, without replaceing the pistons, but thats a huge pain in the but... but that should help to get a few more RWHP, and help the mileage some.

hahaha, our daily driver for 6 months was the 65' olds, 7MPG, it runs on premium gas ONLY, and lead additives... that thing went through SO MUCH gas...