250 is IN!! What timing for Duraspark?

MercuryMarc

Well-known member
Woo Hoo!
Thanks to EVERYONE who helped me with the 250 rebuild.
I also rebuit the C4 and went for a spin today after 4 months of down time.
I have replaced the 65 Dizzy with a 82 Duraspark Dizzy + Module from a Monarch, flamethrower high voltage coil, plugs gapped to 0.045.
I set the dizzy to 10 degrees and it fired up after a few cranks.
I am running a pusher 14 inch fan into a 3 row Mustang radiator with temp sensor swith "T'd" into the lower rad hose. Kicks in like a charm at 195 degress. It really seems to start much better and runs smoother.

How do I determine how much advance to run?

Thanks again...
Marc in SF
63 Comet Ragtop
69 250 block, 82 200 head, 69 C4 tranny
http://mercurycomet.net
 
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