340 cam specs?

FWIW. we can compare compression and V/P using of the auto vs the 4 speed cam as long we stick with using Chrysler's seat to seat for the comparison.
Altitude of 500 ft used, same as before.
4 speed Manual cam has Chrysler intake duration of 276 and assume installed at 112 (looks like it from the specs)
Static compression ratio of 10.0:1.
Effective stroke is 2.28 inches.
Your dynamic compression ratio is 7.56:1 .
Your dynamic cranking pressure is 149.21 PSI.
Your effective boost compression ratio, reflecting static c.r., cam timing, altitude is 7.46 :1.
V/P (Volume to Pressure Index) is 105

with more compression.
Static compression ratio of 10.75:1.
Effective stroke is 2.28 inches.
Your dynamic compression ratio is 8.10:1 .
Your dynamic cranking pressure is 163.55 PSI.
Your effective boost compression ratio, reflecting static c.r., cam timing, altitude, 8.00 :1.
V/P (Volume to Pressure Index) is 115