[Rev]

[i]The bottom line is unless you have extremely high compression, say 13:1 or higher, you shouldn't have any trouble cranking the engine over, hot or cold. [/B]

That comment made me remember way back in the '50's when a lot of us ran flat head Fords. We would get Edelbrock or Offenhouser after market heads with 13/1 compression. Leaded gas was used then and premium was 103 octane. The electrical systems were 6 volts then. The starter motor would barely turn the engine over and starting was problematical.

What we did was to install an 8 volt battery in the 6 volt system. That would start the engine but would eat up starter motors, head lights, and all other electrical accessories (there weren't many).

Sorry for the nostalgia, but the above comment just made me remember.

Rev