aftermarket MPFI conversion kits any good?

does anyone know about these MPFI kits for /6's by chance? a buddy of mine wants to keep his 225 in his 75 dart sport an likes the idea of EFI for it

you'd have to do tap the intake for fuel injectors and then it should work just the same.

For something like that, your buddy might wanna look into a megasquirt setup:
http://www.diyautotune.com/

JMO, but on a low performance slant 6, a simple TBI setup using a GM TBI and megasquirt would be a great option.