[DenverTaco07]

I'm running 9 psi, 620 to wheels, but that's adjusted to the 6000 feet i'm at. The tuner i used has tons of LT1 experience and i do know he pulled some timing.

I've considered drop in pistons, not sure about rods but would probably do them too, but i figure it would be 5 to 6 grand.

Is it necessary to pull the motor or can they do it on a lift?

I also have a lack of trust issue, i'd love to have one of the member shops here on the forum do it, but they are all out of state.