saccowboy

I tow with my truck about 20% of the time around 10k and use it for a daily driver and a little hot rodding on the track every now and then. I am more concerned about fuel mileage and spoolup in the lower tq ranges than anything else but would like to finish my truck somewhere around 525-550hp and a little under 1000tq. most of my freeway driving is between 1700 and 2000 rpm's towing or not.
So question is should i go with a 12 or 14 exhaust housing on the phat shaft 62? and if i do that what should i put on the HT3B, a 23 or 26? thanks for the help guys!

AK RAM

You really don't hear of too many people using a 23 on their 3B any more. It would be awesome for towing and spool, but I don't know how it will affect top end flow. Probably do just fine though at the HP levels your talking about. My primary is comparatively sized and it does fine at those levels. Others with more 3B experience will chime in I'm sure. Definitely a 12 on your 62 though.