For a short period in 68 I ran a .030 over 283 with a 30/30 Duntov cam, Jahns pistons and headers in a 57 Chevy two door post car. The engine I thought at the time ran like crap, what did I know! Was a real pain to drive on the street as it was my daily driver. Remember when bigger was better? The good news is, come Saturday night out on old rt. 84 I had them all talking. I took on all comers. Was putting 383 belvedere's on the trailer. Kept breaking engine mounts and blew a few clutches but won a lot of races. I remember one race in particular, the 383 Plymouth Belvedere, I must have had a broken engine mount. Distributor hit the firewall and broke the rotor, I won the race but the guy in the Plymouth demanded a rematch, says he didn't get out of the hole good, yeah right. I went to the local hang out, the Big K truck stop and melted a plastic spoon over the broken rotor. Ran him again and beat him by two car lengths.