[Plays with cars]

Thanks Steve. Good to be able to check this worry off of the list. Also glad to hear that I'll be able to acheive reasonable advance with this combination. That was going to be my next concern; if I had to retard the timing too far I was concerned about the heat that would be transmitted into the piston crown.

So, when do you pass the point of no return for compression on a 2.4 that one would be forced into high octane and/or twin plug situations? I thought I was past the edge, but your response indicates there is still some margin.