Originally Posted by
dipstyc1928
they make pnp one's though. i've got one right now that my friend is building for me but i had him hold off on it because i might not be keeping my mustang. there's a difference in the set up from dsm to ford systems. i just dont know how much different the 420a's are compared to the 4g63's.
his is board modded for the 420a. iit would be easier buying a new unit.