Uploaded a couple of final pictures showing the grinding I had to do on the Offy to clear the Fentons. Bowtietim, I know what you are saying about the first holddown and bolt. The landings are a good 1/2 to 3/4 inch apart. If one was to machine down the Fenton landing, there wouldn't be much meat left to rest the holddown on. Think that I'm going to have my friend with the milling machine make me a steel spacer cut to exactly fit the difference between the Offy flange and the Fenton flange. That way, instead of building up the Offy flange, the holddown will be even and exert (hopefully) equal pressure on both manifolds.
http://community.webshots.com/user/geezer
