If you temporarily install a set of light springs, you can see the maximum advance at a much lower RPM and set it accordingly.
MSD make a kit for their distributors # 8464 I don't know if it's worth giving that a go or if anyone else here has tried that. Also, I'm close to getting getting the car legal for the road. But the authorities are concerned about the engine number. They can't decipher / decide if the first and second last number is a 6 Can we confirm it is fact a 6 please ?
Thanks Michael, that's weird. Why would Buick use b as a 6 ( or 9 ) surely they had a full set of number punches ?
The Buchev has 3:47 gears with a 700R4. It weighs exactly 4,300 lbs on a scale guaranteed to be within 5 lbs. (I'm proud that along with the engine swap and adding a heavy-duty trailer hitch, the truck lost 160 lbs). I really want a posi, but if I do it, I will go for 3:36 gears.
Not quite on the road yet Bill. Took it to the authorities for a final check and they pinged it for having the steering shaft too close to chassis ( minimum 3/8" they require ) So it means some serious surgery to cutting into the chassis and re-fabricating. It's getting tiresome and a real strain on the mental side of things. Trying to do it with the engine still in which is difficult, but pushing on. As for the earlier problems, the authorities accepted the engine number as a 6. Gear ratio change is the last thing on my mind right now. The problem I had with engine misfire was the leads for sure. Braking down in a second location, so bought a roll of quality wire and will re-do them all and get rid of that Chinese crap !
Finally got a chance to use the dial back timing light. I'm getting 32 degrees at 2,500 RPM. Should I be happy with that and leave alone, or hunt down a Crane adjustment kit somewhere ( extinct ) or try another set of springs which are readily available eg. MSD # 8464
you need to go to around 3500 rpms to make sure timing is not still advancing. what is your base timing at idle with no vacuum advance hooked up.
