Here is the deal with the fuel injection.........all the wiring and the infamous ECU can at any moment die. Those are the cars best left alone if they work. It is recommended to do a cam with a 4 barrel conversion since the lift on the stock cams is less than a fuel pump lobe. Now if you do upgrades to the fuel injection unless you take out the ECU your stuck with no real tuning and power is stuck in one mode. If you keep the hardware and go to programmable system yes you wake the engine up but your talking lots of time and money. The 4 barrel, cam, headers, intake and distributer for a weekend and maybe a few more day(s) for the money under $1500 give you a bump from 135hp to over 200hp and anyone can work on it olus you can't beat the looks!