your looking at 210-220 hp with that lot mate with simil;er torque if your planning fi i wouldnt bother fitting 268 cams go for somethin like 263 they perform better with fi mate
im running 12 psi with water injection no intercooler or charge cooler it feels perfectly safe but it does suffer from heatsoak if its really hot and your not moving much ie santa pod
the r32 exhaust has a flap that opens at a certain rpm below that the engines pretty quiet when it opens it gets louder and prob gives a few hp the 2.8 v6 4motion doesnt have it hence my r32 ecu wonders what the fooks goin on