You know, I think it is pretty close. The whole flange and collector assembly has been moved about a 1/2 inch to the driver side to gain clearance between the downpipe and the lower radiator hose. I also asked him to move the flange just about 1/4 inch further toward the radiator for the people who want the big boy turbo.
I also forgot to mention that I did one real quick dyno run at my buddies shop. I haven't retuned my SSAFC since I put the new manifold on, but I was able to dance right on the line of the 300 WHP number..........at only 11 psi.(humpleg)