Fuel Question For Duke

[Clem Z.]

Re: Fuel Question For Duke

Clem,
Funny you say that because I turned my distributor every change of fuel.

I tightened my distributor just enough that it would turn with grease on the gasket.

I would drive a few blocks and listen for the ping or lack of then adjust the distributor a few % .

There were differences in the 92 octane from station to station and I found that 92 at one station was not the same at another and again I would pop the hood and reach out from the door and turn the distributor.

As you may remember, the old timers would say to forget using a timing light, just get it to ping under load, then retard it enough to eliminate the ping and you are optimum.

DOM

back in the day when i did not run a vacuum advance on my HP street engines i built a threaded device that replaced the vacuum advance that had a thumb wheel i could turn so many turns and i knew how many degrees i advanced or retarded the timing. came in handy for street racing when you opened the covers on the headers for a little street race to help make the car payments. also had a switch to bypass the ignition resistor.