[Captainfab]

I agree with switching the cam and intake. I would also consider a smaller carb. You want to be careful to not go too small on the cam. Maybe something like the Comp XE262 or XE268. It partly depends on just what pistons are in the engine and what size the combustion chambers are. A smaller cam is going to increase your cylinder pressure and be more prone to detonation. A dual plane intake such as the Performer or Performer RPM would be a good choice.