I can't be 100% if it has to be blocked or not sorry mate. I'm working off my mental pictures haha and they aren't very clear.
I'll let you know Sunday night if no one chimes in and gives the answer.
Just checked the instructions.
NO port goes to the boost source aka the nipple on your cooler pipe.
COM port goes to your actuator on the turbo.
The other NC port left should be blocked off.
Check this article
Your setup should be like page 5
And instructions on the ports is on page 9
Use the page numbers down the bottom left
http://www.greddy.com/upload/file/PRofec_Bspec2.pdf
If no one has answered this before the weekend is over then I'll post pics when I get back home to my car on Sunday.
It will be one line running to the intercooler nipple and one running to the actuator. The booklet should tell you what part on the boost controller to plug these both into.
Then just run a T piece into that line running off the back of the manifold and put your vac into that and into the profec
Spoke to Nistune which I guess is Matt above haha. Too many dodge people have wrecked it for us. I'm going to wait for my 34 to pass compliance, then I will pull the ECU out of the 33 and send it to Matt to get sorted.