Thread: Total timing
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  #54  
Old 05-16-2023, 10:48 PM
uttergto uttergto is offline
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Join Date: Feb 2013
Posts: 34
Default ignition timing

I have been reading all of the comments about ignition timing. I have a 65 GTO, .030 overbore with an HO 744 cam, set 3 deg advanced. The tuneup specs say, with the vacuum advance hose disconnected, the timing should be 6 deg. advanced. My question what happens if it is set at 12 Deg. advanced. Does this cause the engine to overheat driving at 3,000 RPM and under a load?