Thread: Timing thoughts

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Originally Posted by gremjimi70

I have built a 406 with 10.5:1 comp. 750 holley, fastburn heads and Hydraulic Roller Tappet, Advertised Duration 314/318, Lift .540/.540 camshaft, I was wondering what inital timing I should set?
The motor idles best at around 15 degrees advanced, am I in the ballpark?

Needs more initial at the crank, 20-24. Interrupt the hot wire to the coil and install a momentary push button switch that interrupts the circuit when pushed. Push the button, then turn the ignition key to begin turning the crank, then release the button. That's the only way you will get the motor to start with that much initial timing. Long cams want a ton of timing.