I would just like to see a multifuel engine run at 3200 RPM's ! Until I see a verified tach running at 3200 RPM's I'm calling BS on this claim. I know Mr Varns engine runs higher then that, but his engine was machined from a solid steel billet ! From what he has told me, you can run these engines up to about 3000 RPM after you have had the bottom end balanced. That's the crank, rods, pistons, and bolts used. He still uses the factory crank (heavily modified) since it is made from 4140 forged steel. You also must use full groove main and rod bearings, and bump up the oil pressure. He also mentioned valve float. The factory valve springs where not meant to run that high, so you must use stiffer springs. Some day if I live long enough and can find the money, I would love to try and build up a multifuel that can run over 3000 RPM and make over 300HP. Just a dream right now.