:coolgleam What would the redline be on a 1992 brougham 5.0 305 ci?

I don't know officially, but a d-body 305 won't be making any power past 4800-5000, and it wouldn't help to rev past that.

depending on the mileage & abuse factor the bottom end will see 5500 rpm without much trouble,but with with the cam & heads on that motor it probably won't pull past 4500rpm.