whatever the stock #'s, it wont be stock anyway,IF i build a 292 or 261 etc,it would be a mild to moderate build with efi and some other cool stuff, i would build my tire/rear diff ratio to also maximize hp/tq. my goal would be about 250-270hp at the wheels for fun cruising and a bit of towing capabilities.maybe thats unrealistic for an I6????i know with an endless pit of money anything is possible,but i will do all work myself within my capabilities(i'm pretty handy and eager to learn)to save some jack.