So I'm ordering an engine from Massive Mods today and I can't decide which one I want, the MM5 5 or 7 port. Anyone here run them? Help me decide! I have an O.S. Speed carb that's going on it and a Dyn 086 pipe. My LHS carries the 0801 for a decent price too so that might be an option next week. Be running on larger outdoor tracks.

Thanks!



@ MarK (MM) do these come with ceramics installed?