Adapting the FiTech unit to a 4200 engine would be a Herculean task to begin with. A custom intake would need to be fabricated. Also, the timing issue, which we've already touched on. The 4200 is designed as a package unit. The factory ECM is bolted right to the intake. The Under hood fuse box is 6 inches away. You have a quick connect firewall harness, and couple other plugs, and hoses, then the whole engine is ready to come out. I'm sure it was designed that way for simplicity on the assembly line.
I won't deny that adding a Fitech unit and adapting some sort of ignition system, would definitely clean things up under the hood. On the other hand, it would open a can of worms elsewhere.
Last edited by Whitedog; 04/09/2020 7:48 PM.
