When the 196 6cyl in my Rambler starts to give trouble, I'm going to replace it with a Ford V8 with EFI.. right now considering a crown vic 5.0L, but thinking about a 4.6 as a junkyard I go to sells engines for $129 each flat rate, and they have a couple rows of cars with both at any given time.. but I can only go 4.6 if the tape measure says I can ither way, mid 20's MPG is likely.. which is much better than the 19MPG that I get with the 196/ BW 3spd auto ( which is cousin to the Ford FMX trans )