My dad has a 69 Mach 1 with a 427 SOHC, we were talking last night on the phone and he told me he'd let me have the 427 sideoiler that he was originally going to put in the Mach before he came across the SOHC. At first I laughed it off because I literally just purchased a dart block a few days ago, but now that I think about it, how cool would it be to put that motor in my gt? I'm hell bent on re-installing the supercharger though, and I feel that I'd have no option but to keep the 427 original. My goal for this car was an insane amount of power with the dart block, but an original 427 would be just as cool. Just looking for some feedback as to what some of you would do?