I'm thinking the bobweight will not be as imp on a max mileage build that will do a minimal amt of accelerating as opposed to a ground pounder but I'm gonna grind/polish/match everything then give the weight # & the crank to the grinder. Quench for sure/Mag heads. Thought about checking into an "Atkinson (sp) build w very high comp & a specific cam to bleed it off & much better mileage but sacrifice in power but a mileage build (& a 318 to boot) I'm not seeking power from this one. Any thoughts?