Man you have allot more faith in that stock bottom end than I do, small fords bottoms are inheritely weak to begin with, definetly put a main stud guirdle on that thing, you are pushing the limits already with your set up and then your thinking about adding higher compression and alky you sure are asking allot out of some oem componets. forged internals would be money well spent. Is that a 63 falcon I see in the pic? I had a original 63 falcon futura 260 v8 car it had 13 inch 5 lug rims, looked funny as hell but man that thing was fast, one of my biggest regrets was selling that car. Goodluck, Charles