You would need to get one that has already been modified, or modify it yourself. It's not really that difficult, you just want to be careful and "measure five times, cut once" as they say... An example, I modified a Ben Snobar 340 4bbl base plate for a Shaker style Ebody hood, andd made it work and seal to an AAR reproduction hood, while sitting on a tall single 4bbl intake on a B wedge block.