Here's how I do mine.
For my engine configuration, Shawn @ FSI suggested I time to 5* BTDC (which gives his recommended overall advance after the automatic centrifugal kicks in, per how he set it up).
I purchased the entire distributor system with the original look distributor body, cap & rotor. Since the the locating pin on the underside of the dist body is not included, I make sure the dist body is held in place firmly using the side set screw, then I use this method successfully.
I have the Nu-Rex timing scale and timing wrench.
- Locate TDC using the timing pin and scale.
- Since the recommended setting for my engine is 5* BTDC, I rotate the crank pully timing mark to 5* BTDC on the scale.
- Then I follow the Nu-Rex wrench instructions to align the rotor to the first cylinder contact (effectively timing to 5* BTDC).
- Close up the cap and verify the timing with my induction timing light.
I am considering using Shawn's suggestion to slightly keyhole the plate hold down screw hole to allow for a small spark lever adjustment to slightly retard the spark when going up higher sloping hills to avoid pinging. Haven't gotten the courage yet to modify the hole
