367 vs 410 Engines Masters

Based on what logic ?

Why does a mid 70's 500 cid 8.2l Cadillac engine make less then some NA 4 cyl it's basically 4 x bigger shouldn't automatically make 4 x more power ?
A 1971 500 cid Cadillac engine made 365 horsepower and 535 foot pounds of torque at 2800 rpm's