Makes sense. Have the stock Marelli electronic unit. I'll have that total checked ASAP.The problem is that if his distributor has a long advance curve and he sets the max to 34 degrees then his advance at idle will be too low resulting in poor pick-up. I think that 36 to 38 degrees at 5000 rpm may be more appropriate. Some distributor curves do not give full advance at 3500 rpm so it is better to set the max advance at 5000 unless you know for sure that it is all in at 3500.
Edit: Shankle recommended 36 to 38 degrees at 5000 rpm for modified Marelli distributors on 1750 & 2L motors.
Any and all electronic/pointless distributors?Maximum advance is the critical setting and should be set there. Rev the motor to 3500 rpm and set the pointer at the M mark on the crank pulley and let the idle advance fall where it may. This goes for the stock Marelli or any of the aftermarket distributors available. If you have a dial back timing light set it to 33- 34 degrees and use the P, tdc mark to line up with the pointer at 3500 rpm. Hope that helps.