No sign of detonation with 93 + boost. Even on a hot day lugging up a hill. The mufflers (flowmaster 40's) are pretty loud though & I may not be able to tell if it's faint pinging. Idle at about 850. It does have a geared starter because a standard starter would barely turn it over at any timing setting. It seems awfully powerful to me the way it is, but I'm not sure what a 400+ hp engine should feel like.
Anyone know how many degrees of mechanical advance I should be getting? 8-9 degrees does not seem right to me.