Same engine I have slincoln 3 and for same reasons! Those old Dove heads, and the 10.5:1 factory compression ratio. Hard to beat, for a stock big block. Now if I was real smart one of those new Coyote 5 ltr. Fords(Dave mentioned earlier in this thread) would be the cats meow! Same horse power, lot less weight and better tuning ability, as well as gas mileage!