I'm still listening to all opinions. I thought the cam sounded too big, that's why I asked for opinions from people with more experience than i have. Pump gas here is 92 max, soI told Jim I'm keeping thr compression down to 10.5 or 10.6 to 1. My TC is still open for debate, so more opinions are welcome. I'm not trying to start a fire with the members here; I'm looking to learn. Thanks to all. Keep 'em coming, please. Paul.