Is the extra power very noticeable?
Yes, there is more top end power. Mid range is way better than CFI
Does the engine run any smoother/quieter?
The engine will rev easier and will be a bit smoother in high rpm.
How is fuel economy?
Seems to be about the same, but for the extra power it is a bit more economical - if you know what I mean
Any problems since doing the conversion?
Yes, a case of lead foot and also I did not change the wiring loom and the wires for the idle control are in the wrong place, so Ive had to screw the idle screw right up to get it to stay going.
How much did the conversion cost for each of you? including parts and labor (if you had someone else do it)
The parts cost me $150 from a wrecker and that included the manifold, cold air box, injectors and fuel rail, air conditioner bracket - remind your mechanic of this, a/c belt, ecu, fuel pump, longer throttle cable and accelerator pedle (the pedle isnt required). I also got a intake manifold gasket from Ford for $26. I didn't change the distributor (as Australians refer to as the dizzy). I am going to because the timing goes to about 60 degrees advanced when it gets sudden load and Im not sure if it should. TOTAL COST
: $176.00 plus my time which was about a day of mucking around. If I had to do it again, it would take about 3 to 4 hours, since I know what to do now
And finally, are you happy with it? Is it what you expected?
Yes. By far it is the best bang for the buck mod for a CFI. I didn't really know what to expect. I was a bit dissapointed when I first drove a CFI because it seemed to die in 5th, but now with MPI and a bit of optimax, it canes.