Are after market EFI kits that difficult to install into chevy 350's? If so what will i be facing when doing so?

Thank you.

John


89 YJ DD

87 YJ 350 TBI, SM465, NP241(eh), SOA w/1.5" springs, 35" MTR, D44 (aussi locker)/14bolt (welded) with 4.88's

Location: Upper Michigan