Posted by Kaegi [98.247.164.246] on Sunday, July 21, 2013 at 12:35:41 :
In Reply to: I knew that posted by Mike Stone [71.39.211.42] on Sunday, July 21, 2013 at 12:20:49 :
The early engine was the OHV and the later one 38 to 40 was the flathead. the fuel back in those days was very low quality so flatheads performed with less issues in many ways. especialy in the heat. OHV need higher octane to run right in hot weather or pulling a load.