sup,
yeah, i did probably the exact same swap. cept mine was out of a '79 nova.
the swap was fairly easy,
first off, determine the exact "depth" of the gear on the toy dist. then tap out the roll pin holding on the toyota gear. (this all after you've marked everything off of the diz, so that you don't have to work on the timing for 8 or 9 years when you get done.)
then mark this depth on the gm dist shaft. this is where you can play around and do whatever method you want.
i drilled through the toy gear in another spot (not the one that was used) to assure that it would be mounted at the proper height and in a good mounting surface on the gm shaft. the gm shaft *might* have a joint in it near the terminal end and that's why i had to move the mount location on the shaft up a bit, and the hole in the gear up that same amount so that the gear would still drive the oil pump.
i just realized that you can look most if not all of this up in the tech articles. that's where i got all of my information.
but anyways, do the swap with a gm dist. you can get an internal coil and a hotter spark, plus you get rid of them points. and it cost me maybe $60 bucks total.
if you have any questions, shoot me an email,
jonathan
jmalphr@clemson.edu