Daryl is correct

What I'm looking for is how much less area (larger rod/smaller jet) to move the afr up 1.5 point.

Since I need to source rods and jets I'd like to purchase close to what I need based on fellow moparts members opinions, right now doing the math my cruise is at (89-66=23) and power is at (89-52=37). What do I shoot for in size 21/34. So how much a smaller area equates to an AFR increase of 1.5

Just trying to figure out where to start when purchasing rods and jets.