96 gt mods? could use some help

hey people. i have had my 96 gt for 3 years now and the only thing i have done to it was intsall a tri axe shifter. just because i got i for 50$ new from my friends. i havent done any mods to it because i also have a 02 gsxr 1000 that i ride all summer long.
well i thinks its time to fix up my old mustang , i think shes well past due.

first question. i want to add PI heads to my week ass 4.6 i was wondering what kind of power increase i should expect. as for the intake i want the P-51 but , i would also consider a bullit intake. again numbers? not sure on what exhaust ill get but thats not an issue right now.

i was thinking about the eibach drag launch kit with lakewood 50/50s out back and 90/10s up front, 373 gears , with drag radials. sound good?

also i was wondering if the 03-04 cobra 6-speed would fit my engine? do i need to change the bell housing?

i can get a set of cool saleen S7 seats for 1000$ from a friend of a friend , hope its not just someone pullin my leg .


well those are my plans for now . if you have any ideas please let me know .

is it worth doing the pi swap on an wngine with 113,000 miles on it?

well thanks for the help people.:nice:
 
Figure out where you want to go first. If you want to go blower/turbo in the future, which you will, take it from me. Look at a whole new PI motor instead of the PI swap. If you go PI swap you won't be able to put a blower on it safely without your engine going KABOOOM! The compression will be too high. If your going to do the PI swap anyways may as well forge the bottom end while your in there. It will save you grief in the long run. The PI swap will get you about 30-40rwhp, it is a good mod for our cars. Just no where you want to go before you start doing stuff. If your happy with 300whp the PI swap will do you fine. If you want more that means power adder which is a no no with PI swap. The only thing you could do after the PI swap for power adders is Nitrous.