Hey all, just recently introduced myself. I recently was gifted my granddads 1964 GMC Stepside, which was previously my great-granddads. He used to race quite a bit, but this was the only one he kept. It's built pretty stout from what I hear, but what exactly do I have? Being the young person I am, I don't have the experience to know every little thing's effect. Of course, my granddad has taught me a bunch, and has told me most things he knows about the truck. He built the engine and whatnot, keeping the original frame and body. So, here's what I know off the top of my head. 383 Stroker Edelbrock 750, model 1407 (May be a 650 now, but I don't think he's changed sizes) Dart Iron heads ?200? (I don't know size for sure, might be a 215 but will ask next time I see him) 3200 stall Dana 44 rear end with 3.73 gears Turbo 400 trans Edelbrock performer Series Mech. Fuel pump. Used to be holley blue top. Electric fans, unknown CFM as of right now. Edelbrock Victor Jr. intake manifold Hooker Super Comp headers, going into a reverse glasspack. Sounds like the beginning of Van Halen's "Hot for Teacher" when idling. But a bit faster. 292 Comp cam custom grind (CS 292H-10 Special Perf HYD) Cam Specs (Single Profile) Valve lift - .507 Duration @ .006 Tappet lift - 292 degrees Valve timing intake - Open at 40 degrees BTDC, Close at 72 degrees ABDC Valve timing exhaust - Open at 80 degrees BBDC, Close at 32 degrees ATDC For cam installed at 106 degree intake center line. Duration at .050 - 244 degrees Lobe Lift - .3340 LSA - 110 degrees. Overlap is 72 degrees I think. Pushrod ratio is 1.5 I also think. haha Roller-rocker arms Compression ratio unknown at the moment. He used 113 octane when he raced it, but since he now uses the highest grade available at the station, preferably with no ethanol. He says it'll run on pump but will be nowhere near its potential. So, what do I have? How should it perform, and should I keep an eye on anything in particular?