That looks like the same route I took with mine. Probably because I used the SDCE piece as a model.I did it so that I could run the flat hood.Mine is made from 1/8" plate for the base,a 14" air cleaner lid for the top,and some hardware store .032"sheet metal wrapped around for the sides. I also made a short "velocity stack" about 3/4" tall at the carb. inlet and put an epoxy cone in the lid to get the air to"turn the corner".It has a 3" inlet and some directional vanes to direct the air into the carb. from all sides instead of just one. I think the internal volume of the whole thing helps too as it slows the air down before it's asked to do a 90 degree turn. After I had it all welded up I capped it up and tested it at 25 P.S.I. Much to my surprise it didn't split!