Talking Buick 350s brought up an old issue. Car has been gone 17 years now. Can not for the life of me figure how I killed it??? 79 Electra coupe 350 had the trans rebuilt 1500 miles before. I was 17 with my buddies on the highway jamming Styx on my 8 track player. Well I went for top speed. 85 then buired it back around to 35. Down grade. Not sure how fast I was 110?? Suddenly went dead until 60mph and the engine was screaming. Lost 3rd but now and then on a cold day I'd have 3rd until the car warmed up. Heard the luxury cars got a fiber 3rd gear and I over sped it?? Weird case never did figure out what happened. By then I bought a Toyota and gave up on it.