i,m leaning towards a 3.9 crank, 6.700 chevy rods in my 383... since it will have stock intake and exh..what cam should i run to have a smooth idle when its WARM? will have 3:55 gears more than likely..also can i use say a 750 holley and stick on the factory side hung bowls? [so it still looks like a mopar carb] thanks guys dan