Another update kids...
Before manifold 12.55 @ 109mph
http://www.etdracing.com/jim/magnus/1259.jpg
After manifold 12.13.@ 113mph
http://www.etdracing.com/jim/magnus/1213.jpg
Thats a solid 4/10ths and 4mph gain in the 1/4 mile. No other changes were performed on my car from before the manifold to afterwards.