Weird !!!!

Just installed a new HEI unit in my small block..... fired up .... no problem...... timed it at 10 degrees advanced.... the starter labors to beat hell at this advance...... took the boat on the lake...... pings like a bitch......rechecked timing , still at 10 degrees... Retimed at 2 degrees advance . starts better and doesnt ping. whats the deal ? timing marks off? slipped dampner? any advise would be appreciated.

Nothing weird at all, you timed it by initial instead of total timing and you have way too wide advance curve!.. Don't know what you have but if it's just a ski boat, put 24 in the distributer and have it all in by 2800, set it at 36 total that'll give 12 initial, it'll start easy and run smoothe with no detonation!..

Thanks Gofast.... Ill Give er a whirl !!! :D