Quote:
Originally Posted by TJ's GMC
These engines have super low compression so I don't think you have to worry to much about detonation with 16 initial. I heard that same saying from the old guys as well. lol Setting by ear I had mine originally at 4 degrees. Then I bumped it up to 8 and felt a nice increase....then 10 and felt little more, higher didn't seem to make All that much difference so I stopped. I'm considering the HEI from HEIDIZZY on ebay. I'm gonna try and do an acceleration video so we can do some comparing. Hopefully this weekend.
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Greetings again to all following this thread!
Personally, I would stick pretty close to factory settings, and certainly nothing over 10 degrees advance. Given factory specs, you are already 2.5 degrees above what is recommended, and I don't believe you will damage your engine with it set at 10 degrees initial advance since it's not that big of a jump. However, there is one thing to consider in advancing initial timing too far, and that is kickback against the starter which can, and has resulted in damage to starters
, such as a broken starter nose cone. This is something that must be considered no matter what engine you are working with. Again, I wouldn't recommend anything above 10 degrees BTDC.