I pretty much have the same setup. 393 ci, afr 185, RPM, .555/288. int - .576/294. exh., C6, hooker super comp, dr gas X, 9" 3.70 trac, and a whole crap load of other goodies.
For street driving and occasssional strip or track, go with the 185's. Keep your rpm's in a reasonable range. If...