Bad Gas?

[vex]

Originally Posted by Boostmaniac

the missing pulses almost sound like a stuck seal. If you have that much carbon build up it could be extremely likely. You could always do the seafoam thing, I've never done it but I hear it is pretty good about cleaning up some of the carbon deposits.

I did it before during my tune up routine. I seafoamed. Changed the oil, installed exhaust gasket. Filled up at 711 problems.