Someone school me on header size.

I've posted before, but in a nutshell, the T/A heads I did were on an AAR w/a 6bbl, 292 Purple Shaft, 9.5" converter, full street car with only slicks mounted for the track.
With a set of off the shelf Heddman 1 5/8" jobs & 3" pipes with turndowns at the axle, it ran a best of 12.35@109mph,...shifting~7200...I don't see Your needing more than
that, and the drive-around torque will be sooo nice!

Sounds like a killer engine.