Not even sure we changed metering rods. According to my notes the only change last time was to put larger jets on the secondary side.

This is a 700 hp engine so each carb is only feeding 350 hp which seems reasonable for a 500 cfm carb. According to the mass airflow the engine uses 900 cfm at 7000 rpm so dual 500 carbs should work fine. I do have dual 800 Edelbrocks that I can throw on there if I want. I suppose that might be an interesting test.