Reply To: Flathead to C4 conversion

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#2981

Anonymous
Inactive

thanks to Virgil & sue, The speedometer problem will be addressed.  Now, I am having trouble overheating. After getting the car on the road, it would overheat at freeway speeds;  but not driving around side streets.  I checked the timing advance.  I found it to advance to about 32 degrees BTDC at high RPM.  I put a stronger spring in the distributor and that fixed the normal driving at highway speeds.   Today, I took it out to where there is a good size grade and it overheated going  up the grade.  I  had the radiator cleaned out when I first got the car.  My question now is does anyone know what the advance curve should be on the 53 Mercury with the original 8ba engine?