Sound difference?

This might be a dumb question, So here goes. Right now I have a 273 with 2 1/2 inch duals with crossover and magnaflow's. The 273 has a two barrel.

When I upgrade to a four barrel carb and intake will it change the exhaust note louder? I like the low rumble I have now and yea it could be a tad bit louder. But all in all a good sound and a nice compromise between the on road sound and idle. Also a good tone that the wife likes!!


Thanks,
John B.