Spool on the street ?

Car already has a sure grip.

I guess the plan that make most sense if instead of building a second 3rd member $$$$$.

So I can change to when I take it to the track.

Is put the gears I want 3.91-4.30 in now and build a 500 or 518 and install it next winter.

Just figured spool would be a cheap way of getting the best of both. And by spool I meant welded.