Re: Timing and Tuning
My '64 GMC (has a '66 305 V6 w/ Holley carb) was professionally tuned a year and half ago and here is what the guy gave me:
Idle: 600 rpm
Base Timing: 12* @ 600 rpm
Total Timing:38* @ 2500 rpm
Idle AFR set for best idle vacuum
Dwell is 30*
No vacuum advance - do not connect
Uses 89 octane fuel, with additive
Truck runs great.
Last edited by Andice; March 21st, 2015 at 03:27 AM.
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