Say guys, I bought a 69 fastback that was a 351w originally and have decided to replace it with a 428. My research so far indicates that I have to replace the sway bar with at least 1 to 1 1\8 inch one, heavier coil springs, an export brace, reinforcement plates welded in, a 428 transmission brace, larger radiator. I am running easel rock heads so they clear the shock towers and an aluminium intake for weight. Any advice or input welcome. The car will be a weekend cruiser not used for racing. I also am using a top loader 4 speed with the small spline...will it hold up to the engine? Thanks, sean