What size carburetor for 65 coupe, manual transmission, 289 30 over 10.5 to 1 compression ,aluminum heads (Dart). Edobrock air gap Intake. 355 or 373 gears. Cam specs say 2500 to 6500.msd drop in distributor. Street car don't car about mileage not a daily driver. But something that will run good. Builder says 600. I am thinking 500 maybe 570. The calculator says 515. If I go with a 600 or a 570 will it need to be jetted way down. Any real world experience.