Here’s the info for the P-4B out of a 1970 Edelbrock catalog.
Looking at the rear of the manifold I would think that the number 8 and 7 runner would need to have been modified on the later ones to clear a HEI.
The number 8 runner being on the hirise top plenum likely would not have lost much performance capability, but the lower number 7 probably took a good hit.
Note the cfm carbs there recommending!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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