Seems to me if compression was the only issue, a billet aluminum spacer could be made and installed under the head to lower the compression.Just looking at some of them makes a guy wonder--- also looks like it would be easy to change out the injectors for spark plugs on some of them and with the crank trigger ignition systems that are available, that doesn't seem like a big obsticle. My forklift is a diesel and I have considered converting to butane which may not require the compression to be lowered as much.--- Just some thoughts---Paul
