HEMI6point1
Nitro Member
I'd assumed - maybe wrongly - that at this level of racing, the intake manifold would be a make-to-print deal, with the engine team developing the geometry 100% in-house.
But it doesn't sound like it from comments posted above about Hogan and Wilson?
KB Racing seems to have found great success working with a 3rd party to design and build their EFI manifolds. Could be that Allen Johnson decided to go that route as well.