When i got the bike it had a decent home port and the ports matched but it was all rough so when i rebuild my bike i cleaned it to a miror finish thats all i could tell you
Hopefully you didn't clean/polish the intake and transfer Portsmouth a mirror finish. You need it to be rough. I think it has to do with fuel flow, but not sure. I do know that the only thing you want mirror finish is the exhaust ports. If it's a home port job I would stick with the 30. My advice would be send it to Ken and have it ported and get the head mod. You'll know it's done right and you can run a 34pj.
yea if the intake is smooth the gas will puddle in there i believe
The point of a ruff intake surface is to promote turbulence that helps keep the fuel atomized.