[cobra 53]

As I have learned, the initial timing / idling depends partialy from the cam.

On my 302/CR 10.5 the comp cam duration is 244/244 @ 0.50.

Made first the basic tuning on the holley carb.
Important:Transfer slot measure SQUARE.

Start the engine and turn the distributer until you arrive to the desired idling RPM.

On my case 850/900 rpm. Initial timing shows 20°/21°. From there set the mech advance at 33°/34° be 3000/3500 RPM.

Comparing with the timing table from Demom Carburation the initial timing of 20°/21° looks ok.

Rico