Is the Man-A-Fre 4x2 intake manifold with 4 Rochester 2G carbs a good setup for the street or is it more of a race induction?? IF it's a good street setup, should ALL 4 carbs have idle circuits in them or not?? Sorry about my ignorance but I'm a new 327 owner and don't know all that much about SBC engines! Thanks for the info!!