Dart 230's will work well out of the box and even better ported. You might want 5500-5800 stall with that cam and maybe more gear depending on tire size........I had a similar 406 with the unported Darts, Dart intake, 5500 stall, pg that ran 9.70's in my Vette @ 2025 lbs in 8000 ft air and the guy I sold it to ran 10.80's at 122 in a 3100lb Camaro in the same air. He had 4.88's, 29.5x9 slicks 5800 stall and shifted at 7200.......won the SP track champ and King of the Track with it at our home track in 09.
Pretty impressive for a 20 year old kid and his first year in SP!
Johnny