The 250ci fits, but there is less than 1" of clearance between the top of the air cleaner and the inside of the hood. I need some Maverick mounts but I don't know where to find them. Does anybody know if adjustable 302ci mounts would work? I like the idea of having a 300ci in my Mustang but that requires a mechanical fan delete, special motor mounts, and a cowl hood.I have '66 Stang with factory 200. What is largest straight 6 that will fit without modification? 250?.