nytrdr24
+1y
first off welcome to the b-scene!!!!
the hocster & maztang are pretty dead on on what they said, but just for what it's worth heres my 0.02.....
i'd stick with the 4 cyl because of gas prices, they aren't ever going to go down, only up....in 20 years a v8 will be like finding a dinosaur except in vehicles what are used for towing or heavy loads, it won't be practical for the common man to have on in his vehicle because the cost of gas will be $10 a gallon or more.....
now with that said, since you have both a 2.0 & 2.2 engines, i'd take the 2.0 block & run the 2.2 head till you can build the 2.2 block & 2.0 head, also i'd do the couple things hocbj said too, header, weber, 2-row rad from an auto tranny'd maz, electric fan, upgraded ignition, fidanza 9.5 lb flywheel.....heres's why.
running the smaller engine with the couple items the hocster listed will put you above 100hp & won't kill your wallet! plus it will give you time to get the funds together to put the other engine together right & not be rushed, or use a cheaper part because it is easier to get........
the 2.0 is the "small block" it's stroke is smaller that the 2.2, so for hp purposes the 2.2 would be the way to go.
as the hocster said, the 2.0 head is also the way to go with the manual lifters, the hyd ones in the 2.2 head are a royal pain in the rump roast!!! not to mention if you wind the engine past 4500 rpm you take a real risk of floating a lifter then your really stuck with the infamous tick-tick in the head....
you can take the 2.2 block, put a set of low comp forged pistons in it from wiseco say in the neighbor hood of 7.5:1, cryo treat the bottom end which will make the rods, crank, & block stronger. bore the block if necessary up to +1 mm over, if not just hone & go with it. use the 2.0 head for the mech lifters, get a custom reground cam from paeco in b'ham (or take the stock cam & send it to comp cams, they can cut a brand new one for you, & who knows maybe market one for the rest of us too), use ferrera valves for the 626 which are +1mm larger intake & exhaust, get the turbo setup off of a 626gt or probe gt (this includes manifold, turbo, & wiring harness), have the head extrude honed (more reliable bench flow on runners than port & polishing plus it will cost about the same amount to extrude hone as it will to pay someone for hours of manual labor to port & polish) & cryo treat it & all of the internals as well so you won't take any chances warping or cracking that new beauty.....
if you build the engine like this, you could run in the neighbor hood of 10-12 psi of boost, & shoud get depending on the cam 150 hp if not more & it will be stone cold reliable.....or if you don't want to run a turbo & like super chargers better camden makes a small supercharger that will fit our trucks too.
you ought to be able to find most of the parts you'll need at these sites..