Originally Posted by seth90dx
I would get a turbo at the junk yard and make a custom manifold... Its pretty easy if you have SOME metal working skill and know how to WELD. I would have to agree with Sportmode, if you want to make 300 HP AT ALL! Wiether it be N/A or FI you need to have a burly ass motor. Check out the DART blocks! I hear GEM (Golden Eagle) Sleeves are sinking
But dart has some burly ass blocks! $2000 for a closed deck B18 or B20. Be realistic dude! If you want to make that kinda power and not watch pistons fly through your hood, you gonna need one of these.
GE hasn't had a sleeve sinking issue for a couple years... their old style sleeves did, but the hew HD's are unsinkable. They're beautiful. I would also recommend benson's sleeves (from personal experience).
I've tuned multiple daily-driven setups to over 300whp with stock internals without any issues. It's all in the tune. Just don't skimp on the engine management... at the very least, consider one of the free hacks (uberdata or crome). NepTune is the SHIT... or you can really step up to AEM EMS, autronic, etc..