3w50 -really nice engine - but weighs a bit more than a ZDZ60 - -- unless the engine has been revamped in last few years -
when we were doing th large Dalotels - a friend bought one rear induction - the power was excellent - not as good as the ZDZ60 but a smooth strong runner . The sales pitch to him was it would easily outpull the 60 --In my book equal with the ZDZ50NG powerwise but gives up a pound - the DA50 and ZDZ50 on my postal scales were exactly the same weight in same configuration .
here is a 3W50 at work in one of the Dalotels - this one done by Jeff Blaylock