I am new to this site but appreciate all the good info. I just picked up a 75 FJ40 and it ran ok but wanted to do a tune up on it. It has the non-USA distributor. Anyway I changed the cap, plugs and wires and started up and ran fine. So anyway I wanted to continue with the rest of the tune up. I now changed the points and set to .018 at the high spot also changed rotor. Now it will not run right at all, I even pulled the distributor and set the points that way so they are right on .018. I am just not now getting good spark at the plugs, cant figure out what happened! I saw a similiar post about this same problem but the resolution was never posted. Any help appreciated.