Got w6 in shop whole different animal then the 770, anyway previous owner had champion d21( tuning up oil Chang etc) I've got the adapters on shelf to go from the 18mm to 14mm automotive was wondering about trying these e3s, it's stock just wantin to tune it best I can, was wondering about plugs fuel octane, timing etc. also we allowed 10% rpm was wondering how to adjust rpm it does have the m&w governor, also curious about intakes and heads, I'm looking for a 450 engine to start building a bigger cubed motor for next year unless I should use something else, just looking for insight since I've swapped brands lol