in 2001, i was supposed to rebuild my 16V bigport with dual 45 weber side drafts. bumping up compression, using high rise headers, higher duration cams. my main goal was about 150hp. upon reviewing what i was getting into i've realized that by the time i hit my goal, my set-up will be unstreetable. will have rough idling, very loud car, fuel consumption won't be where i want and lastly, it'll take a lot and i mean A LOT of cash. so i went and swapped a 20V instead. it came out as a better choice. not too loud (unless you floor it), fuel consumption is great, idles like a bnew car (my car is an 82), unique (at least back in 2001) and i was closer to the 150 i was looking for which is more than enough for a car which used to have 58 original horsepower from factory.
but if you ask me.. go turbo!