power?

[ff_drift_lol]

you can't? i've done it on an l61 in a g6. timing chain service. it's not that hard you just gotta label all the lines and wires you'll be fine. is it your dd? i'd pull it off and have a mild port done, oversized valves and valve springs that thing will breath nicely for your setup. lsj valves would do nicely as well since they are sodium filled and larger. honestly though you can find some good valves for like 15 a pop.

 

[BlackCobalt707]

i can pull off the head, i was sayin i wish you could do a PnP with the head in still on the block in the car. valve wise i would rather wait. the valves i got are brand spankin new. makes no sense to go out and spend money on more.

im hoping i can still dyno tomorrow tho. my damn IC pipes likes to pop off on me so i dunno

 

[84z28]

where did you get your downpipe?