Fuel Filter Empty

M6270 was the 'competition' pump and had a cut off pressure of 7.5 psi. In other words, needs a regulator.
M6902 was the 'Super Street' pump and had a cut off pressure of 6 psi. That's was the better choice for 99% of users.
Can't speak to the recent reissue of these pumps personally, but have read here of pressure regulation issues.
If replacing, I'd suggest a stock replacement, or Holley 110 mechanical if there is uncertainty about the cut-off (aka maximum pressure).