vacuum restrictor(in-line)

well, i converted my 90 Daytona VNT from the VNT setup, to a 89 Minivan Mitsu turbo... keeping the stock electronics, and re-doing the vacuum system with 3/16" tubing, i can only get 1psi, but i put a .025 MIG welding tip in the line going to the wastegate, and i get 3-4psi steady after it spikes to 10... wondering what size restrictor i should be running in there...
tia

Grainger it.

i don't have the money right now... and i'm trying to work out other problems(an extreme lean condition no matter the boost level)
me and chad hooked up his last night, and got 10 psi... pulled a little harder than the VNT, but didn't spool as low... but as soon as the tach swept past 4k, i had to let off, the a/f was heading south quick at that point, and i'm not to set on having the head off again too soon

anyone?

[Bad Vibe]

I looked evertwhere for a used one and came up with nothing. I did however find one at my local dealer ( PN 4275607 ). This is the correct restrictor that you will need. It is stock on an 89 TII set up. Hope this is what you are looking for.