Smallblock efficiency or How to have your cake and eat it too

I'm tuning for

What type of carburetor and size are you running for what engine?

Sometimes after deployments (3 months) I only had two pump twice and hold the accelerator pedal half way and it would start right up. 600 cfm Holley, 1973 340+.030”, 4 valve-relief cast (low compression) pistons, 89 non-ethanol with stabil fuel stabilizer and sea foam diluting the fuel. Zero elevation.
Thank you!