LA 340 Intake Manifold

The M1 single plane is designed for 3000 - 6500 and then some.
For cruising around town, I suggest a RPM-AG. I’m not sure if the power you’re looking for so a cam duration can float in between a 224@050 to a 248@050 which is pretty healthy for a street cam.
Do you know your gear ratio and are you happy or OK with the current cruise rpm?