I have a somewhat stock 440 with 13K miles on a rebuild. It's a real dog with low comp pistons. I'm looking at waking it up a bit with a 500 stroker kit from 440 source. Has anyone ever used one? I have 906 heads, 040 bore, 727 Gear Vendors, 3:23 gears. I tried 3:91's for awhile and that helped but they were worn out. I'm also running Classic Air AC. Would like to run at least low 13's I'm also planning on drivng it on another 9000K mile road trip. Thanks.