I'm about to do my first (and rather lage, i think) round of mods to my M6 '99 C5.

MTI stage 2e ls6 based casting heads (milled .030")
--flycut pistons
G5X3 cam from LG
TPIS longtubes
LS6 intake
UD Pulley
Professional full dyno tune

car currently only has borla catback and CAI... nothing substantial but with that and a tune it put down just under 330rwhp

Any estimates on horsepower? I haven't bought the LS6 intake or UD pulley yet, I'm assuming I'll see a pretty big gain with that intake since the rest of the setup will be flowing pretty well, right? I've never bothered with an UD pulley but hell I figure I might as well while I'm in there.

Any other suggestions while I have it apart? Of course I'm replacing the oil pump and timing chain while I'm at it and using all ARP bolts.

 

 

440rwhp