So your saying your 350 Olds fitted with a 670 cfm avenger flattend out above 4800 due to lack of CFM / being too small for that motor?
I would like to refer you to a dyno test done on a factory Tripower built up 421 that made 475 hp, yet still made 350 hp up at 5500 running on just its center 2BBl !!
A gotta say for sure you had something going on with that 350 Olds that was cutting into power above 4500 ( like jetting ) but it sure was not CFM.
The poorer idle of that 770 was likely due to the idle air bleeds needing to be changed I would say .
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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!
Last edited by steve25; 05-16-2025 at 06:28 PM.
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