MSD ignition installed, now I'm thinking transmission time?
And I forgot I only answered one of your initial questions, yes I did realize this was another thread, no I do not know how to use a piston stop tool.
I did buy one though, thinking I would have to look at this one day.
to uses a piston stop tool to verify the damper marker is still accurate
1) remove all six spark plugs, that will make it easier to rotate the engine by hand
2) install the piston stop tool in the #1 cylinder spark plug bore. With a stock slant, because the pistons recession is so deep you will likely need to have the piston stop tool fully extended.
3) using hand power, rotate the engine fully clockwise till it stops by having the #1 piston being against the piston stop tool. Make a mark on the damper in line with the TDC mark on the timing tab.
4) using hand power, rotate the engine fully counter clockwise till it stops by having the #1 piston being against the piston stop tool. Make a mark on the damper in line with the TDC mark on the timing tab.
5) a line placed on the damper in the center of the marks made in steps 3 and 4 will be the true TDC. If the 'center mark' aligns within a small error ( +- 1 degree) of the damper OE timing mark, your damper is fine for engine timing purposes. If it is off by 2 degrees or more the damper ring has either slipped or is in error in other ways.
with the engine in the car it can be difficult to accurately measure the center distance of the two marks. I have used a section of bendable wire or a length of solder bent to match the damper radius then carefully sized to length as an aid in that process. Get the aid the right length and then take it to your work bench to accurately find the center. Mark the center on the aid then compare to the damper marks...
