According to the Edelbrock.com web site, when you go to the intake page for small block Chyslers, the listed intake heights for measurements A & B are
RPM and RPM A-ir-Gap............TorkerII
............4.9 - 5.8.................5.25 - 6.19
They go on to say add the 2 numbers and divide by 2 for manifold height.
RPM...........4.9 + 5.8 = 10.7 /2 = 5.35 in height
Torker II ....5.25 + 6.19 = 11.42 = 5.72 in height
You gain .37 clearance