I need some help on a timing question please. I am putting in a new 350 motor in my 93 chev pu and had someone tell me to time it I set the timing at 0 unplug a wire from the distributor but he was not sure witch one. If I could get some help that would be great.

 

To set timing, you have to utilize a timing light; a light with an advance is optimal. Start off by connecting the power leads of the light to your vehicle's motor and the other lead wire to the number one cylinder plug wire on your motor (the cylinder on the right bank in the very front when facing the front end of the vehicle). Next, start the vehicle and point the timing light towards the left side of the harmonic balancer. There should be a small plate with an "A , 0 , and R". On the harmonic balancer, there should be a small tick mark that keeps moving. This will point out the timing. To adjust the timing, move the distributor back and forth after loosing the retaining nut for it. Set the desired advance on your timing light and then move the distributor until you see the tick mark hitting "0". Optimal timing for a stock 350 is about 12 to 13ยบ. after the timing is set, tighten up the retaining nut. This is pretty much a universal way to time a 350ci. Good luck!