I would put on a RPM Air-Gap intake and with only 327 cubes I would stick with the 650 carb. The tunnel ram would look "Awesome" but you would have to run some small carbs on it like 500cfm or 600cfm vaccums.
A set of smaller AFR alum. heads would really open it up 8) Hey maybe even a 75 or 100hp shot of nitrous for the strip!