5 port, or 7 port that is my ? is jp3 a good pipe?...i've had jp v specs, i like lots of power.. i currently am running a hot mods 367 novarossi...i'm just tired if spending 500+ on engines..it just seems like a lotta money wasted..are these engines up to par?? i got a RC8...& i like power... so help me decide on the 5 or 7.. turbo head or does it really make a sh**