1973 340, want more power.

Sorry i thought i had responded to this.
I HATTED Then on the freeway, you're the slow on in the slow lane. streetlight to street light and drag racing i like then a lot more.
now that it is trailered, 4:56 are a lot of fun.
If money wasn't a problem, i would keep my 4:56 and bolt a GV on the back. have the best of both worlds!
Would 3.73 be much better on highway?