360, LA360, or Magnum 360?

So if a Magnum, maybe a M1 intake? Not sure what that is, but sounds great to me, much better than the $800 intake. Where can I get one for around $300 or less? ....

Pro-power (?) Crosswind intake can be had used for ~$100 it has dual mounting bosses LA/Magnum are you keeping the EFI? Cosswind is a carb intake with bosses for MPFI if needed.