Difference between 360,340 and 318

Assuming all motors are built similar lets say to the 1 HP to CI level you gain about 40 hp with the 360 over the 318. Hard to beat cubic inches. Your going to see about a 50% increase in HP with 8 pounds of boost so 318 around 477 HP and 360 around 540. On the track with slicks and good tuning on each combo the 360 would be quicker. On the street running legal tires I bet you wouldn't notice much difference. With those kind of power levels in a light A body your going to be traction limited.