does anyone know what motor Dean Treadway is running,3b? if so can aan, be juiced up to make more horsepower?

He has:
White 1986 Audi Sport Quattro (totally restored to full factory condition)
White 1983 Audi UrQuattro (20V built 3B?, ABS, 6-spd, torsen differential, roll cage)
Silver 1991 Audi Coupe Quattro (with a factory RS2 engine and 6-spd trans)
Black 1990 Euro Audi UrQuattro (with factory 20V (RR - like 3B), ABS, torsen differential)
Silver 1986 Audi 4000 Quattro (suspension and engine mods)

Yes, you can build up 3Bs, and even convert them to coil over plug if you want to.

3B and AAN can be modified.