73 360 Ignition timing after Chain replacement

Yes I am assuming that the Mopar Performance Gear set is accurate. Why wouldn't it be? You think factory mopor parts would not be accurate?

At any rate.....i drove the truck today, and it was excellent. I don't think it would have run as well as it does, if the Cam was a full tooth off, which is the only possible mistake I thought I might have made. I didn't just throw the chain on any old place....lol.....I know that I used the correct marks, and like I said in my initial post I'm nearly certain that the marks where lined up correct. The excellent drive-ability pretty much confirms that. As to the ignition timing, best guess is that the Cam is an RV cam, not the stock.....and setting initial timing at 15 is gonna be fine.

This is a work truck. I'm not trying to build a hotrod or drag engine. So long as it runs well with good power and throttle response, I don't see a need to tear the waterpump and cover off again.

Thanks to all for letting me bounce my thoughts off your knowledgable group, even though this isn't actually an "a body"

....and we're not talking about "a full tooth" here. We're talking about DEGREES which is much smaller than a full tooth and can make an incredible difference right or wrong. But hay, you're obviously happy and that's good. Even if you're off by ten degrees and I've seen it happen. But you'll never know. Good luck!