now is the time to mark TDC on the flywheel or damper. Put #1 cylinder EXACTLY on tdc, or go maybe 0.250" down both directions from tdc and mark the CENTER of those two measurements. You also need to determine at 30-32 degree advance mark to make sure you're getting full advance in the distributor. Don't worry about base timing..set full advance as needed. I'd start with 30 degrees and bump it up until it makes no more change in performance, then back off slightly.
All chevy distributors and oil pumps turn only one direction. |