Those measurements for the flange height from the China Rail are on Hughes website. Look at the Intake manifolds for RB's as if you wanted to buy one on his page. They show the measurements for all the manifolds they carry.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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