Seems like the car pings easy, I don't feel like I'm bogging it too bad but it appears to like slipping the clutch/more rpm than other engines I've had. With a/c it's terrible. Using either 93 or 91 fuel. 2001 ss, stock except for k&n filter and ported tb.

 

when was the last time you replaced your spark plugs?

 

Never, at least in the 5k I've driven it. I have a set ngk tr55s sitting in the garage. I also have goodies that will hopefully improve a lot of things on it and let me know whats going on. Hptuners, msd wires, afx wideband etc.

 

gap the plugs to .055" and replace them and recheck.

clean the TB too.