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Speedfreak · 10-31-2010

I'd lean toward tune/detonation(caused by bad gas? maybe, but that tune is too on the edge IMO).. Then you can say those circumstances lead to the other theories as well(as a secondary effect).

I wouldn't use that head as is. Needs to be decked or cleaned up however possible(if possible). Those pits will make your tuning window smaller/attract the possibility of detonation.

10-31-2010	#507
Speedfreak Join Date: Jul 2004 Location: MN Drives: four tires Posts: 1,608	Re: beaterX project thread I'd lean toward tune/detonation(caused by bad gas? maybe, but that tune is too on the edge IMO).. Then you can say those circumstances lead to the other theories as well(as a secondary effect). I wouldn't use that head as is. Needs to be decked or cleaned up however possible(if possible). Those pits will make your tuning window smaller/attract the possibility of detonation.