Intake manifold for HR Tilly

i have the 2 part intake from VKE for my engines it works for bolth HR Tilly and SBN . i have seenguys use just the half the carb bolts to , and fab up their own part that bolts to the head . it could be done with minimal efforts ....
Who makes a intake manifold for a HR Tilly that will bolt up to an animal head?
It is undesireable for the manifold to taper to a smaller inlet on the head than the carb outlet. This tapers the manifold
down, which would be better served being straight inside, or tapered larger, carb to head.
An angle of 7 degrees larger, from carb to head is a good number to work with. The opposite taper presents a very large downside.