Why are you so up in arms about a B20/VTEC? It's not a bad engine if built CORRECTLY. If you build if 1/2 assed like most people do, then yea it'll be full of grimlins. It would turn as much or more power than any of the other engine's you've proposed. B20/VTEC's are nasty nasty engines if you build them right. Sleeving any of those engines and you're gonna be spending $1000 just to get the 84mm bore.