ok, here is the question, now i know that when i had the points based dizzy was in the engine, the timeing setting was 6btc, but since i have changed to a electronic dizzy, aparently that 6btc went out the window, i know that i am no where near that setting any longer, so what am i to do, is there a new setting i should be shooting for, or do i just play it by ear.
so you know, it is a 1968 f100 with a 240ci motor in it, i will assume that
the motor has about 60,000 miles on it, and i am not totally sure about that.
thank for any info i get, and it will be used



chad m moyer(catfishwhiskers)

 

6 degrees would be a good place to start. To time it by ear, disconnect the vacuum advance and plug the line. Find a nice long hill for testing, and leave it in as high a gear as possible, and pull the hill. Keep advancing the timing till you hear the engine ping as you are pulling the hill. Then drop the timing back a little bit.

Then hook up the vacuum advance, and see if it pings really bad going up the same hill. If it does, you have two options:

1. Turn the timing back with the vaccum advance hooked up till it quits pinging or

2. Take an allen wrench and stick it up in the vacuum line hole and see if your vacuum advance is adjustable. If it is, turn it to reduce the amount of timing advance the vacuum advance gives you.

 

am gonna try the truck today, on a good hill and see what happens, will let you know, thanks for the information dave