PLEASE report back on the test with the distributor at 18 degrees static advance. Would guess the engine will be difficult to start, will gain power in the lower RPM's, LOSE power in the upper RPM's, and overheat at cruise.
Looking forward to your report.
And premium fuel??? I don't need premium for my 390 with 10 1/4 compression unless I am pulling the 18 foot trailer loaded. Never for normal driving.
Jon.
Last edited by carbking; 08/12/2018 4:40 PM.