I take it your using a 1g sensor then?

I don't know, maybe my motor is just junk, but it was quieter with the meth, and its def quieter on pump gas.

I'm running 28-29 psi, about 7.6-8.3 peak timing. Anything after 7200ish and it starts complaining. I tried 9 degrees once, 3.5+v. Not good

Its ok, I'm working on a new meth setup. Have most of it already, few parts on the way.

BTW on c16 as well, at 32-34psi, 13 peak timing, the whole pull was less than 2.5v.