OK, I just finished the indexing. I got two of them dead nuts toward the exhaust ports, one was about 10 degrees too far left and the fourth was 20 degrees too far left.
SVO, the package you sent me said (4) of the .043, (4) of the .054 and (4) of the .064. Well what I got was (4) of the fat ones and (6) of the skinny ones. I ended up using two of the fat ones. No combination of fat, skinny or fat+skinny could properly index the last two.
Who's next on the list?
BTW, here is what my new plugs look like after 200 miles. The left four are the new ones and the right two are the old ones. Whadda ya think? Perhaps a bit lean?
SVO Boy, what's up with your throttle cable? Did you rig that? It almost looks like your clutch cable...but cut to fit your throttle. Hey, whatever works. Also, your oxygen sensor wiring harness looks very thick. Is that stock, or did you change something there too?