I'm also running a 240 bb, +3 crank, vf3 reeds and I really like my dyno port. My pipe is different from the normal stamped dyno ports though. Its a hand made cone pipe from dyno port.
If you plan on getting your cylinder ported, talk to the builder thats going to port it and ask them. You may have a pipe in mind and it could be the same as what there thinking or it could be something completely different
I had a handmade cone pipe from dynoport back in 95 on my KX125 as matter of fact they did my whole top end and the bike ripped!!!!!! Plus the pipe looks like a factory ride pipe awesome looking