It is very powerful MF, and has a deeper bass to the sound. I just thought it must be how the old school power torques sounded, but I guess this is the reason.

Not sure if this is also a symptom of the big piston, or whether it is because I replaced all of the orings and head gasket, but the compression is also pretty mean. It takes more force than usual to pull the cord to start it. Compressor is working fine too.

I will let you know how it goes in the mow off I plan over at the oldies place; This PT Mustang vs the FC Corvette. See which one of them can defeat 'The Sponge' easier. 4 Strokes need not apply (already tried and failed haha)