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OK, I got the kind of piston stop that you screw into #1 spark plug hole. I put it in and turned the engine clockwise on the compression stroke till #1 piston stoped and marked the location of the TDC mark on the ATI balancer on the block. I then rotated the engine counterclockwise until it piston stoped and marked the TDC mark on the balancer on the block as whell. Then I found the exact center of these to marks on the block and put a timing pointer there it is about 4:00 on the balancer (85 degrees).

But when I went to chect the timing with a timing light I got 90 degrees??
I am trying to fab up a timing pointer, is this correct?

So, I put the piston stop back into #1 cylinder and did the same thing. I rotated the engine clockwise until the piston hit and recorded the timing mark value on the balancer with the pointer that I fab up in the last step, the value was 245 degrees. Next I rotated the engine counterclockwise and got 114 degrees. 0 on the balancer is marked TDC, so from my last measurements I am 114 degrees counterclockwise and 115 degrees clockwise, 1 degree off.

Did I do somthing wrong I cant see, from what I think my timing mark should only be off 1 degree or so. But why am I getting 90 degrees when I use a timing light.

Now I know from my scanner that this car reads 28 degrees at idle, I just want to be sure that is where it is at since I installed the adjustable MSD optispark.

 

By your description, it seems that you are locating TDC properly.

The #1 spark plug wire is at the bottom left (driver's side) of the OptiSpark cap. Make sure you're on the correct wire.