Hey Y'all, Great news! My 383 stroker is going on the Dyno Friday! Wahoo! The builder has promised me a minimum of 500 HP and 425 Ft/lbs of torque. I'm so excited! As great as this all may be, I have a slight problem that may arise. The carb I had on my 350 was a Holley 4Barrel rated between 600-700 cfm. I don't exactly know how much, I can't remember. All the paperwork is in the rig. I have spoken to the builder, and he's not sure if the Holley I have will be enough. I may need to be in the 700's. He will Dyno with mine, and then Dyno with a bigger carb to see what the readings are. If I need to move up in cfm's, do I go to the 700, 750 or do I sport now for the Truck Avenger 770? 383 owner please speak out! All you 350 and up dudes too! I really need input. I know absolutely little about carbs for Chevy's. Please help as I may need to order immediately. I will know more on Friday! Thanks! Manny Happy Thanksgiving!