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Old 03-14-2012, 02:30 AM
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New cam in SBC350 - WHAT TIMING ? ...

Hello guys !
Can you help me....
I bought new cam for my stock 1975 El Camino (350 Stock engine, with th350 trans, Edelbrock 2101 Performer intake and , Edelbrock 1405 carb)
and i dont't know what timing should i set.
Camshaft is : .050 Duration 204/214 Cam lift .280/.295 Valve lift Int .420/ Exh .443 Lobe center 107/117


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Old 03-14-2012, 03:37 AM
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With vacuum advance disconnected and plugged, set the base timing to 12 degrees before top dead center. Lock distributor, connect vacuum advance to the manifold vacuum source which is the port on the drivers side front of the carb, recheck timing, it should be 18 to 24 degrees before top dead center. Right away the idle is going to jump up, lower it back down to regular idle speed, then set the idle mixture screws.
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