I've built Y-blocks, FEs, just about every possible combination of sbf both W and C, and I have raced a Fairlane Cobra, '69Mach I/302W/428CJ/452MR/351W, '66 2+2/351W, 66Fairlane/351W, and several Fox body mustangs '86GT/302/358W/383W, 88GT/376W-14psi, 89LX 302/8psi/ and lots of street types that were very fast. By far the easiest to work on were the Fox bodied mustangs, of which I still own 2, and they respond much better to simple modifications, the weight is decent, and parts are available for anything you desire to do to one. My only problem with Fox mustangs has been the 28 spline axles, and weak brakes on the early models. They will stop the car, but you have to be alert if you are used to power 4 wheel disc brake cars. Not the best looking mustangs, but the easiest, cheapest, and quickest with the money spent. JMO, but if you are wanting to go quick in a Ford, they get the job done when applying a little Hot Rod ingenuity. Joe-JDC