boduke0220

if you really want an intake, get a bullitt intake. they will give you a nice torque curve while keeping your low end torque. But thats just if you plan on staying bolt ons and stuff but i did hear you get nice gains with s supercharger

pcs

get the pi heads ported while you have them out and install them with a good pair of cams, comp/crower/ect. lots of good choices. c&l plenum/75mm tb will definitely complement your new heads. just remember that when you swap pi heads to a non pi block your c/r will be very high. not necessarily a bad thing but youll have to make sure you always run good gas. if you get the combustion chambers blended with your p/p it should lower your c/r slightly to a more street friendly #.

BAttitude7689

well when you say good gas what do you mean I already now run 93 Octane is that sufficent enough since i'll have a high c/r .....also what do you think it would cost in labor to install the PI Heads and Manifold

defconfire

PI swapped guys usually run at least mid-grade gas so 93 is fine.

BAttitude7689

i just found out if I use a set of non PI Heads and just get them ported that dosent make my c/r go up is that true..is there any down side of that.

(if u port) PI - High comp, good for N/A or Nitrous, but you gotta be careful about boost

(if you port) NPI - Good for boost because it doesn't affect compression ratio

defconfire

If you get them ported and a good valve job, I see no reason why that wouldn't work.

But its really all about your plans for the car. If you know your going to get a SC than that is a good option otherwise I would say do the PI swap.

BAttitude7689

well if i wanted to do N/O and not a S/C would porting NPI heads be ok?

defconfire

Yes, that would be fine too.

JEG447

I have a p-51 with a 150 dry shot and am very happy with it and I make pretty descent h.p. n/a

SilvrStang

Yeah but that P51 likes that nitrous eh? hehe