Von Writter
Well-known member
Hi All; I just upgraded my 250s compression, from 8/1 to 9/1. Milled the head to fit a Holley two barrel carb on the log, and started her up for the first time today. All was fine until I put it under load and then, I started to get a fair bit of white smoke coming out of the breather cap and when I killed the ignition, the engine ran on and on real rough for about 6 seconds. I don't see any water in the oil, and I'm real concerned about this. Anybody know what might be the problem?