To be honest, you don't gain lots of power by going with a maf conversion. It's more of a large supporting modification. Later on you can add a bigger camshaft and still maintain great driveability.
Don't get me wrong though, you can modify your engine quite a bit before a camshaft is really needed. I had a 88' convertible (speed density) with heads, intake , throttle body, exhaust done, and removed all emission equipment, and IMO, it drove better than stock. Once I bought this 89' (that has maf already) and put the trickflow stage 1 cam in it, it REALLY woke it up, even with only .500 lift . It has a nice choppy idle and sounds much more mean.