318 crank pulley correct size??

I'm confused. I think I have an A/C pulley. I didn't realize it has 3 grooves and it appears the belts were on the two closest to the block. My new 2 groove (non-A/C) matches up with two outer grooves. (compare pic below)
When I look at the 3 groove pulley, it looks completly different (bottom pic)
View attachment 1715057524View attachment 1715057525

Are you using the proper alternator bracket??? It's different from a/c to non-a/c...

5251 alternator brackets - Bouchillon Performance Engineering

Alternator Mounting Kit

You will also need a single groove alternator pulley, not a double groove for everything to line up properly with a double groove crank pulley and single groove water pump pulley that I posted before...