Is my engine performing as it should??

He said he's got "fully ported j-heads" ( do they flow 220 or 250 @.450 lift ?). Mis-matched stuff/expectations. Torquey cam, small carb, dual-plane, high-ish ratio gears, stock converter, and drives on the highway daily, and then ya throw in the "stiff springs"(?) on the "fully ported " heads. Leave it alone 'til you decide what kind of driving ( power range) and $$ you want to commit to. Probably run better with stock j's , vacuum 750, and better tires. Then he can start spending the coin to change the power/operating range he's decided on(cam, converter,gears, and his fully ported heads). My 2 cents