[Excaliber]

Blower tuning, that was really my point. Without forged pistons there's little room for error. Octane to low, timing to advanced, lugging the engine under boost, anything that might lead to premature detonation is bad news. Get it right, right away.

Electronic fuel injection and computer control usually incorporate a knock sensor and can immediatly reduce the timing when needed, saving the motor (pistons). With a carb and a typical MSD type ignition, your on your own.