As far as I know nothing has been done to it. The 360 had a Thermoquad that the previous could not get to act right. He had pulled the 600 off of his Montecarlo. It's been on there ever since.
What octane gas are you using? If I use anything less than 93 it will ping like a mother.
A friend of mine has a 650 DP that we were going to try on my car but we didn't have the bracket for the TV cable going to the trans.
