QUOTE(brant @ Jul 26 2015, 10:57 AM)
the advance weights in the distributor throw outward as rpm increases...
(increasing the total advance of to the motor)
so at 3500rpm they are maxed in their travel
if you time below 3500rpm, or below max advance... you are not reading an accurate number and the motor will continue to gain advance as it revs
example: if you set 29degree's of advance at idle.
you will have much more advance on the road as the car is at higher rpm
you will then have too much advance leading to pre-detonation, higher temps, poor running, and eventually a holed piston
follow the manual
Thanks for your input, makes sense. I'll b getting my new plugs, diz rotor, cap and plug wires Tuesday. Going to run ngk 6bes (7432 ) and time as the manual says.