CID & N2O Usage?

Would it make sense if you knew you would be using N2O often (only to race at a sanctioned track) to build a little smaller CID with a smaller cam and mix a plate & fogger

For instance instead of building a E-85 547 with 12.5-13:1 CR build a 472-521 CID with a pump gas friendly 9.8-10.2:1 cr then add a Sniper plate (fixed 125 HP) and a 200-250 HP Fogger

Shouldn't a 600 HP pump gas 521 be easy achieve N/A

Rule #1: There is NO REPLACEMENT FOR DISPLACEMENT

Rule #2: See Rule #1

Build the biggest engine you can afford . . . . what parts are controlling the engine size? If you are buying the entire rotating assembly there isn't much difference between a 521 and 557 in part cost . . . . If you have a good aftermarket block a 4.500 crank will take you out to 598ci . . .

The only reason to build a small engine is based on class rules . . . .