Maybe that's it ! I didn't know a big block one would fit a 340 at all. I'm sure I ordered a small block kit ( I think ). You guys are geniuses , no ? No kidding, thanks for that tid bit of info. You know I was thinking of ordering a new Proform distributor. I might have fixed it never knowing what was really wrong. How much of a gap we talking? I was dealing with oil leakage back there also. LOL. Thanks guys. I'll check my files and see if I can find that receipt and find a part no. on the distributor ! LOL - thanks all . Way to go Moparts !