Thanks for the advice. I tool it and matched the flange thiknesses on the Fent's to the Clif but did it by hand instead of using a machine shop. I used the entire arsenal on this one: 4 inch DeWalt grider and a pencil grinder with thin cutting disks, a pencil grinder with carbide bit, and 80 grit 1" sanding wheels.
I first smoothed the casting seams on the flanges of the Clif, second spent time to grinding the flanges of the Fent's to the thinkness of the Clif, finally leveled & squared up the contact surfaces of the keepers. All tolled about 4 hours of work.
Will try to post some before and after pics tonight.
Will bolt it all up tommorrow and hope to have the exhaust run Friday. Again will post all picts to my Fliker site with progress.
Thnaks again for the advice - don't know if it would have looked bad the other way but do like the looks this way.
Brett