Intake/carburetor set up issues

Then you should have the smaller bypass hose. I'd suggest a 68-69 340 intake, a Holley Street Dominator, Weiand dual plane, Edelbrock LD4B, or Performer all with angled washers. Intakes to fit your heads would be Offenhauser, Edelbrock D4B, or 64-65 original 273 without the special washers. If you are using the large bypass hose most of those will work, except the original intakes till 1970.