Dominic

cough *standalone* cough. . .with the money and time you've got invested in your past and current setup you could have one mother of a nice standalone. It would surely cure all of your problems, not that I don't admire your ambition to make this setup work and it seems like a great ecu for the dollar. Flow to the turbo just doesn't seem like it would be the problem, if there improper flow you would have poor response, limited boost, and messed up EGT's i'm sure. There must be something simple. . the 20g is capable of some serious hp, are you still lean?

You're looking for are (cm^2) not volume (cm^3) witch is what you have there. . maybe it's just a mistake in typing as i didn't do the math, but just throwin that out there