Help!Is the stock EFI enough, 74 EFI ?'s Options

[Gunn1]

I Recently purchased a 74 914 (VIN 4742901009) with what I believe originally had a 2.0 liter installed in it (original engine ID 006765). According to the seller the stock engine had one of the cases busted when it had thrown a rod through it. He went on to say he purchased a case (W0111578 ID found in front of oil filler) and took the remaining parts from the original engine to a shop here in MPLS. there they replaced the main, rod and cam bearings. Blasted-polished the crank and rods. installed a 30mm high flow oil pump. Honed the cylinders & installed and gapped new 94mm ring set. Replaced worn camshaft with a new "IV" mechanical cam. At this point the car is not drivable for structural reasons but the engine starts idles, throttles up down and sounds pretty good. The car came with what looks like the 1.7 type air filter set up and the throttle body which sets horizontal rather than the typical vertically positioned throttle body with the larger square type air filter set up.
With all that important info out of the way, I have many questions. Is this a 1.7 injection installed on a 2.0 engine? if it is, is it a huge deal? Will the 1.7 injection automatically adjust to the larger engines demands for fuel. Most importantly what specs do I use to tune the engine? Thanks Gunn

[Gunn1]

Gents,

(IMG:style_emoticons/default/WTF.gif) Ok so I spoke with the gentleman that rebuilt the motor.

He says the engine is a 2.0 liter in displacement.

He explained that when he rebuilds these engines if the cases and heads are junk or to far gone, he uses 1.7 liter cases with 2.0 cylinders and 1.7 liter heads(which explains the 4 bolts on the heads for the runners versus the typical 3 bolt design normally found on the 2.0 liter). He say's he then "opens the heads and case halves up" or "fly's" them on a Bridgeport lathe, that way everything assembles correctly and makes it a 2 liter in displacement. Guessing that explains why the engine runs with all the 2.0 liter electronics on it.

So does this mean I can treat it as a 2.0 liter and build accordingly? Suggestions?, Bueller, Bueller, anyone, anyone?