I primarily use the Moroso filter. I did try the Wix Racing once without issue, but here is something to think about.
So when I was building my W2 stroker motor I had a choice of:
1) re-using the 90 deg adapter
2) using just the regular factory retaining plate (block)
3) purchasing a new aftermarket plate
...and all along, I always paid attention to the actual filter 'input flow capacity' it had, after all it does me no good to have a huge amount of oil flow from the block to the filter, if the filter itself cannot absorb all that flow.
Anyways...I crafted myself a little spreadsheet calculation that gave me a quantitative picture, take a look at the attachment.
Bottom line: the limit, by far, was the size of the flow through the block's oil ports, so on a SB Mopar that's the output port that feeds into the filter and the input port that feeds from the filter.
BTW: I use Wix filters all around, and the field marked EXTRA in that spreadsheet reflects the additional holes I drilled in the factory plate so that the overall flow through the plate would exceed what the block openings themselves were capable of flowing.
