not really.

they have about the same potential. depending on who you are/who you know, one or the other might be easier/harder to get to your specific goal.

from what ive seen, it doesnt seem any of the heads are a lot better than the others.

theres nothing really wrong with the suggested set up.

if you had a running 16v 4age powered car, and broke your engine. its possible this set up would be a good idea.

most small ports are quite worn out. lots of 20vs are low k.. and the small port is the better 16v head for most applications.