Yes, I had early & late slanties & for the life of me can't remember the difference. I could tell you if my new one was here but that will be awhile.

Those Magnecor wires 6508 are or should be a Jeep application, probably not listed year-wise in regard to slanted sixes. It's the wires some slant racers found were good to use.

Supposedly the NAPA boots are correct, again I don't currently have a slant here to tell you.

Very soon I'll have a 75 Dodge Coronet 2 dr sedan, slant six/torqueflite, actually kind of excited! Had to off my '68 Dart 360 and '75 Dart Sport slanty when I moved here, missed them ever since. Fun to have a cruiser car. Buddy said his wife got a regular 26-27 mpg on the highway!