What Shift Rpm

Is that cam hydraulic or solid, my guess is it's hydraulic based on those specs. Are the heads ported? You got flow numbers? You need a bigger cam and carb, 950 or so and that engine will probably like 7500 or so. You need to experiment and see what it likes best, then gear it to go through the traps at the best shift RPM.

You also didn't say what the car weighs or what it runs. How tall are those tires?