Why is it that there are no roots type blowers for early 340's?

blown fish, the reason the newer style intakes are higher is because of the thermostat housing clearance problems,,,i would assume,,

i took and modified a chevy t stat housing to work,,other wise you can not run a t stat with the older dyer style intakes built on a 4 bbl intake,,

ide think the tunnel ram intakje your talkig about would be just as high,,i had looked at that option my self,,altho i never had one in hand to measure,,,