You didn’t specify street/strip or a percentage of the two so I kinda assumed 50/50. With your gear, weight, tire size, converter, and cubic inches, I’ll recommend a cam that’s an off the shelf grind and should be easy to get if Hughes has cores. You might could get them to grind it on a short snout (magnum core) if you’re using a magnum front cover. If not follow their recommended parts at the bottom. And I’d definitely Use the single plane intake.
Edited to add; and if your not married to those rockers, I’d like to see a 1.6 with your head flow numbers.
Hughes Engines
