Serge1965

Hi all, I am new to this forum and am having problems with my 65 mustang. It has a 289 that I built 10k miles ago, it's relatively stock, bored .20 over with a edlebrock 1406 carb and a HEI distributor. Well it ran damn near perfect until a couple weeks ago when I tried to drive it. It would drive fine up to about 65-70 mph, and then it would start to stutter. Well it has gotten a lot worse since then. So I tried a few thing to fix it. I replace fuel filter and pump, pickup coil and modulator, and cap on distributor, new spark plugs.... No luck, so I pulled the carb off to check the float levels and clean the screens in the carb. The float levels were off and the screens were pretty dirty so I though this would be the problem for sure, I put the carb back on an still no luck. So I pulled the heads to check for any burnt valves or any other problems, my exhaust valves were pretty nasty and needed to be reseated, so I got new valves, got them back from the machine shop, torqued everything down, adjusted valves. When I started it up everything seemed fine, it would rev up like nothing was every wrong, then the next time I started it.... It was back. So I am asking for y'all's advice and wisdom, I don't know what else it could be, I uploaded a YouTube video so you could see what I am talking about. Thanks a lot!

http://youtu.be/YifPx7pPR3E