Re: Too much timing?
My engine has 57K orig miles on it. A couple years ago, I gave it a complete tune up. The compression was really good and consistent within a couple psi between cylinders. Majority of the valves were within tolerance, a few were .001-.002 out of tolerance, so I dialed those in. The vacuum was/is 19 inches. It was running good before the tune up and still is.
It was after the tune up when I started experimenting with the timing and it seems to have a litte more power. I drive it one or two days a week all year ago and put the cheap gas in it wherever I need it. I do a lot of towing too. I've never noticed loss of power, pinging, or inconsistencies at any time year around. Therefore, I think it's okay, but based on the feedback I think I'll dial the timing back to 10 degrees. I was running it at 7.5 degrees before and it was fine too. I was just trying to get more efficency/power out of it.
Thanks again for all the feedback.
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