F5GTS331

ok your block is good for about 500 horse. a blower is probably not gonna hurt it as long as yo keep it down to about 6 psi. personally im puttin together a 331 that should be pushin 475 to 500 at the flywheel.gimmie a couple of weeks and i can give you details on how it runs. a blower is definately gonna be cheaper for you. ive got about 7 gs in my motor. you can probably put a blower on your setup and wed probably run pretty close together. and itll probably cost you about 2500. so if i were you id go with some boost.dont get me wrong i love my n/a motors but they costa lot of money! eventually im gonna swapfor a better bolck go all forged internals with the same stroker kit and boost it about 15lbs. butthatll be another 8 gs down theroad probably!

r.barn

The TFS top end kit does not have the right parts for 347 power.

stick with a 302 with those parts and put a turbo on it
you will NOT be disappointed

ih8chevy

dude, ur cam is too small and the heads need to be ported. go get a bigger comp cams cam and than port the heads and than put them on a 347 and blow that.