Spitfire; as much as it pains me
to suggest a GM, you may want to check this site out. Alot of specialty car guys are using ECOTEC engines these days.
http://www.ecotecpower.com/
If you're gonna do a Merc marine 4 you gotta read this thread;
http://www.jalopyjournal.com/forum/s...d.php?t=289260
Steve