60 psi is more then enough for 3” main jurnal 400 motor.
Anyway you can’t use a 80 psi pump without a special distributor gear.
I have run the 60 psi pump in many a race 455 with there 3.210” mains without issues.
Be sure you have a heavy duty oil pump drive shaft even with only a 60 psi pump.
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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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