Well the 1986 is a de-tuned smog engine with fairly low compression ratio (about 8.8 to 1) I was told. So I thought bolting on the DOVES might be workable. As far as I know the engine as it sits is a stock 1986 460 ci pickup motor with 4-bl carb and dual air pumps with all that dang plumbing. The toughest thing is to try and keep exhaust manifolds on it without leaks.