.016 as a reference
0.035 inch was a previous answer. I would seriously verify that. I show 0.035" as the SPARK GAP of the spark plugs, not the point gap inside the distributor. The point gap I found was more like 0.017" measured with the points open on the high lobe of the distributor shaft.
I remove the distributor and rotate until the points are at the widest opening. Then using a .017mm fueler Gage I set the point gap. Reinstall the distributor, set timing and roll!
To gap the distributor points on a 1977 Toyota Chinook using a pencil, first, remove the distributor cap to access the points. Then, take a clean pencil and insert it between the open points while turning the engine until the points are fully open. Adjust the gap to the manufacturer's specification (usually around 0.016 inches) by loosening the screws on the points and moving them as needed. Finally, remove the pencil and recheck the gap before reassembling the distributor cap.
A 79 shouldn't have points to gap. It should be an HEI distributor.
It should have an electronic distributor. So no points to adjust. 0.18
If you are using the original points distributor, the gap would be .035".
points gap 17
Spark Plug (ACDelco R45TS) [Gap @ .035” for points distributor, .045” for HEI distributor]
If it has points in the distributor then it is 0.035 If it has an HEI distributor then it is 0.045
I don't think you will find points on a '94
The air gap between the the tooth on the distributor shaft and the pick up coil should be .006. Be sure to use a brass feeler gage when setting the gap. Align blades good,And adjust to .008th.