Oh I definitely agree with everyone's advice on the tune. Plenty of good suggestions posted above. A tighter plug gap, cooler spark plugs, full groove main bearings,**** I use a 12" line from fuel solenoid to plate and a longer 18" line from nitrous solenoid to plate. Just so the N20 and fuel hit the engine at the same time. Many tricks to engine longevity but after the tune is dialed in the head gaskets are still the weakest link.
