Good Morning,
I have a 55.2 3200 pickup with approximately 76,500 original miles. The only engine mod was to a Pertronix ignition system - with coil - about 5 years ago. No Problems at all since the install.
As spring is just around the corner, I thought I'd do a tune-up and installed new AC 44-5 plugs gapped to .040" and torqued to 25 ft-lbs. Changed the oil and air filter and started to check the ignition timing.
That's when I discoverd something that I can't remember the answer(s) to....
I disconnected the vacuum line at the carb base and blocked the connection at the carb. Hooked up my timing light and could see that the BB is just to the left of the pointer. About 1/2" to the left, The timing light does not have an "advance knob" and idle was at 475 RPM.
Is my timing advanced or retarded when the BB is to the left of the pointer? The Octane Selector was not at 0. It has always been around the middle of the scale.
To advance the timing do I turn the distributor clockwise as viewed from above or CCW?
The truck runs fine - always has. Maybe I should have just left it alone and plan to finish my tune-up when I get my memory back!
All help and or suggestions will be greatly appreciated.
