No run-on, the engine was fresh. Later I ran another bored 261 in a '56 pickup (12 volt starter) with a '56 235 pickup head and based on the past experiance with the other 261, I immediately went to the ethyl gas and max timing (probably more timing yet due to 12 volt starting power), cant say for sure as timing mark was just a ball bearing smashed into the flywheel. I'd just twist the dist and listen for the ping on the road.
Earliest motor was with stock model BC carb, and later motor had the six cyl 'vette stuff, so the later one with its 3.90 rear gear -really felt like a bear- would roll out side-by-side with a 4.10 axle q-jet 350 surburban through 70 mph. Really surprised its owner (me too).
I agree about the lack of need for av gas..hate to think of what it may cost too.
Later,
Ed
