Tom, yes the nitrous is just a bandaid on a "not so good" package. With those huge ports, your airspeed will suffer bad, so bigger cam or smaller ports.
It's hard to build a (small) N/A high horsepower combination for both street cruising and strip.
1970 Super Stock Challenger ex. Paul Rossi 1968 Dodge Dart GT 340 1968 Dodge Charger /6 3 speed manual 1966 Chrysler 300 Loaded 1968 Dodge Charger R/T 440