We took a 76 240Z and built an Offy style twin cam, 24 valve head for it, dual Weber carbs, GMC truck supercharger and nitrous. It was a screamer. 0-120 in about 5 seconds. Little brother wrapped it around a tree. Too much car for him
We did that with a Pinto runabout with the 2.0 engine. Shaved head, NE code high compression pistons, custom ground cam, redialed timing sprocket, homemade exhaust, a custom intake manifold that had a rack of Kawasaki 1000 bike side drafts with port and needle work done, and a pressure plate with stiffer springs. It was pretty fast and would outrun almost everything in our little town.