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Old April 1st, 2016, 05:44 AM
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TJ's GMC TJ's GMC is offline
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Join Date: Mar 2015
Location: Cave Junction, Oregon
Truck: 1964 GMC 1500 LWB Wideside 305E V6.
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Default Re: Too much timing?

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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"Excuse the rust I use my truck"
1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust.
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1964 Chevy C20 292/SM420
1966 Chevy C10 292 hotrod 6/TKO600


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