Converting from cast iron to aluminum water pump

In my book, you guys are all going about this the wrong way. I am going to do the same thing one of these days. My 67 Dart 273 is a nice surviver and I don't want to disturb anything more than I have to. Damper Doctor can rebuild your 360 balancer with the early 69 and earlier timing marks. But you need an early 360 balancer with the offset wedge on the center hub and not the later balancer with the recess outer ring. Put on an early timing cover either 69 or the 68 and earlier with the sheet metal timing tab, and that is all you have to change. Or you could just put a full timing tape on the 360 balancer to the early marks. It seems a lot easier than changing everything.