I have a 383 4 speed in my car which has been rebuilt (both engine and tranny). Long story short:I had them rebuilt about 5 years ago. Got the car back and it overheated, battery kept going dead, so I parked it in the garage for a couple years. Took it to another mechanic last September finally and I had a new radiator, carb and misc. other items already purchased to put on it. Got the car back in December. He also added an electronic fuel pump. I've driven it three times since December. Not being a motor head, I do know that a "beefier" cam was put in to get a little more power out of it by the first mechanic. What carburetor would be a good choice for me? The carb that I had pre-purchased for the second mechanic to install was the 600cfm Edelbrock model 1406. The other day it was finally nice enough (live by Denver) to take it out for a spin. I was trying to be careful with the car as it is somewhat of a fresh rebuild, but had to check out the 4bbl for the first time. To my surprise, I never felt it jump when the 4bbl kicked in as I would with the old Holly. That is why I'm asking what is the right carb for this application. I won't be racing it; just want the occaisonal rush of big engine displacement power and sound. Sorry for the long post.... 64 Polara 500 Convertible ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.