Well i got the M-4's in a while ago and i love them. I have just got a chance to dyno the truck and it put out 529. 6 HP @ 2875 RPM and 1049. 4 ft. lbs @ 2511 RPM:-laf. Im really happy with what my truck did. Just last sunday i got to run my truck at Piedmont raceway NC on the 1/8 mile and ran a 8. 444 @ 85 mph! Im now looking at doing head work and need a good way to drop the EGT's. I was looking at Water/Meth injection, but if i get a good port job done on the head how much will that help, how will the port job affect the truck as far as driveablity?
Congrats on the numbers

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