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PostPosted: Mon Mar 04, 2019 3:58 pm 
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Joined: Sat Mar 17, 2018 4:01 pm
Posts: 12
A friend have a Windsor with 2V O/C heads he is about to dyno
and want me to recurve the duraspark. I dont know much about
the engine dont think he know that much either :roll: What do they
like initial and total? I know it probably take some trial and error
not knowing much about the engine. But some numbers to start with
so he dont come to the dyno totaly unprepared
I can weld upp both the slots for him with a couple of degrees differance
so they have some wiggle room


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PostPosted: Mon Mar 04, 2019 4:14 pm 
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Heo! Good to see you over here, man.....

Windsor or Cleveland?

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PostPosted: Mon Mar 04, 2019 4:51 pm 
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Thank you brent .Its a a windsor block with Cleveland 2v openchamber heads
with some hydraulic roller cam with unknown specs. Frankly i think its a bunch
of mish mashed parts but.......I thought i give them something to start playing
with :?


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PostPosted: Mon Mar 04, 2019 5:41 pm 
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It will depend a little on the compression ratio, but for best power on the dyno, I'd go somewhere around 38-40 degrees total. So something like 16-18° initial, with 12° mechanical advance.

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PostPosted: Mon Mar 04, 2019 5:55 pm 
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Thank you brent, then i know what to weld the slots to
so he have something to start with. then they can fidle
with the springtension on the dyno


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