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Did you have to change your timing when installing pertronix ignitor?

I'm installing a pertronix ignitor and coil in my 165 mercruiser (250 ci straight 6 chevy). For those of you with experience with pertronix, did your target timing setting change? I set my engine to 6 degrees BTDC now, but am wondering if I need to set it to 8 degrees BTDC or more with the pertronix installed. Any info would be appreciated. thanks! Chris
chris
Jun 1
2006
Thanks everyone. I installed and it ran fine, reset timing to 6 degrees at idle. Which brings me to my next question- what rpm should I be turning when setting timing to 6 degrees? My cars in the past have specified ZZ degrees BTDC @ XXX rpms but all I can find in my clymer book and on the web is '6 degrees BTDC' for my engine. I've verified the advance works so setting it at 6 @700rpm means I'm at 10+ @1000 rpms so the rpm's matter. Thanks guys for the responses. Chris chris
Jun 3
It seems to me that no adjustment was needed when we converted the Crusader 220 (Ch*vy 305) in Commando.

Garth
Jun 1
I just had to set the timing, did not change the set point. Calif
Jun 1
from what I gather, the Pertronix kit WILL through your timing off. SO... yuuo install the kit, then re-time back to factory spec., and all shoud be well...

chris wrote:

Tim
Jun 1
   

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