Prom tune in the Northeast

[91MinuteMan]

Originally Posted by FU2

Knocking or pinging ?
One range colder than stock is good for a car that is stock or some top end mods.
Red Line injector cleaner may help out a bit.

I would say ping is a better description. The engine is mostly stock with a K&N filter and port matched intake plenum and exhaust. I will try the red line.