Needs more compression, ditch the alum heads, go small chamber 1.60 exhaust valves. Still a band-aid.
Everything you have in that combo is wrong for what you want out of the car. Your alum heads are giving more away,
This! Those alloy heads require more compression. I would get some iron heads and do minor tweaks. It would be a big plus. Build the Hotroddave super torquey mileage motor in the furture.
"The only thing to do for triumph of evil is for good men to do nothing"
