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Just found the problem. Carb throttle plate screw. I had mentioned to Lars that the carb was wrong then the lady who had the car called and sent me the original. I was dumb enough to not check everything...
Ah well, my mistake and the old car is going to get a rebuild. I can already see a 502 with aluminum heads but my wife is saying, don't you do it fella. Back to stock..... I guess...
Just found the problem. Carb throttle plate screw. I had mentioned to Lars that the carb was wrong then the lady who had the car called and sent me the original. I was dumb enough to not check everything...
Ah well, my mistake and the old car is going to get a rebuild. I can already see a 502 with aluminum heads but my wife is saying, don't you do it fella. Back to stock..... I guess...
Amazing what a small piece can do. I'm pretty sure a lot of folks wouldn't have thought to check that. Hey, you need to buy a new cam anyway, right? A bit more cam would get you a nice jump in power without losing any street manners. Does the wife know how to measure cam lobes? Would she know if you pocket ported the heads? Would it help if I promise not to tell her?
A 4" Stroke internally balanced crank will drop right in with no clearancing. Similar increase in torque and power as going with a 383 over a 350. You can go 3CC flat tops, stock rod length, Roller cam, steel shim gasket, A little bowl cleanup and pocket porting on the heads, and a 4 CC cut on the heads and end up with 9.7 to 1 compression .038 quench, run on regular or midgrade pump gas and add a ton of HP and torque (easily 75 average across the powerband) with the same idle tone and pull to 6000 RPM if you want. It will look and sound bone stock and pass NCRS and your wifes inspection with flying colors with no sacrifice of streetability. It will cost you a little more but your looking at a complete rebuild anyway, now is the time. Just a thought. Will hook you up with a part number spec sheet if you ask.
Your car is absolutely gorgeous! Just do the rebuild and get it back on the road to enjoy. I had a similar experience quite a few years ago. When I pulled the head I found the piston had cracked at the bottom ring and the top of the piston was hung up in the bore by the tension of the rings and nothing was damaged. I went to NAPA and got one new piston with rings and had everything back together and running in less than a day. That engine lasted over 150,000 miles.
Good luck with your project.
Duane