beaterX project thread

[Speedfreak]

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.