How does cid make power?

RAT ROD AL said
VW 1500 cc ( 91.5 CI )engine 53 HP, 78 tq.

426 CI 425 HP... figure it out !

CI = more better !
:poke::D

Yes cause manufactures don't want to turn high rpm most older engines we deal with
make peak hp between 4500-5500 rpm, so when rpm is kind of fixed idle-5500 ish displacement/torque is the only way NA.