I have an H70 that I'd like to "hop" up a little and gain a few more hp from and make reliable as well. I'm not looking for some insane engine that is squeezed to the gills and needs a rebuild every other run. I'm looking for some solid (mildish) performance upgrades. I'm using an H70 circa early 70's. Also, where can I purchase a billet rod? Thanks for your help guys...!