Stockish 340 upgrades, cam needed

more head than you need so ignore those big numbers
pick your rpm range
pick the torque curve you (she) want
you have 4 speed and taller gears
and stock exhaust
problem is stock exhaust likes wide lca to keep from glowing cherry red
most shelf cams have narrower lcas once you get past the small ones
I would do nothing till you cc those heads
do you have a B3 kit? no use pushing the envelope without one
so you might want to find a shelf cam with a 112 best shot is crower so PM Dart19666 maybe Engle
else you are looking at a custom grind Bullet or Engle may be cost effective
would be easier with a solid
lots of good suggestions but focus on that axle ratio- you can't give away torque with a driver