ported npi heads?
 

where cld and i send my npi heads to be ported ne kno and wat comes wld fit? i kno u guys r gonna say its not worth it but i may try it to keep my compression down in case i decide to run boost thanks

Only one place does NPI heads anymore, I will send a PM.

thanks

what cld i expect rwhp numbers to be with my heads ported their cams and full bolt ons?

probably around 250whp. people are barely cracking 300whp with ported PI heads and cams

kinda what i figured guess i better just buy a Mach

I read an article recently (don't remember where unfortunately) that took a 96-98 with ported NPI heads, and stage 1 cams (full bolt ons as well...if i remember correctly) and turned around 280 rwhp/310 rwtq.

This may be the exception (i wouldn't know really) to the rule, but someone did it!

Maybe 5 years ago, people are doing 340-350RWHP with ported PI heads and cams on the stock plastic intake these days.

One of the fastest N/A NPI cars is a 3800lb Tbird that is running low 12's at 112MPH. To do that requires well over 300RWHP.

They are currently building a motor with ported NPI heads, 4V shortblock, Bullet Stage 2.5 NA cams, and plastic PI intake that will be on the dyno in a few weeks. We shall see shortly.

cool thanks guys look forward to seeing those numbers