But I do have an idea to build my own that I started on before. I have a set of Hilborn stacks I had started building an air box with, and they're sitting here. I also have a very similar air cleaner already on my '39 that's finned aluminum oval shape. I'm considering cutting 8 holes in the top using my holesaw set, if I can find the correct size, or slightly smaller holesaw size. Then I will use JB Weld on the inside to attach them to the lid, so it wont show externally.
Before I attach them I need to refinish the stacks since they're pretty flaked off now. Also considering taking the top to my tig welder guy, and maybe have him tig weld round rings on it, so the stacks would be held by set screws, instead of JB Weld. I'll use the same filter media I had for the Speedmaster, so the stacks will actually pull in filtered cool air too.
Just a winter project, along with finishing bodywork. I have a friend who told me he'd shoot paint for me next spring! So I'm pumped that he's willing to. He just finished painting his 1969 Mach 1 Mustang, and it looks good.