" I have a 1971 23' Sport-Craft inboard boat, it has a 307 Chevy V-8 engine with a two barrel on it, and a 1:1 ratio velvet drive.

I've been trying to find out what I should set the timing at. I'm thinking that it should be somewhere around 8 BTDC, but I would like to know for sure.

Thanks for your time, Chris "