it will help a LOT but are you driving this on the highway at all?? I run dual 2.28's and 5.29's with 35 PitBull's and I couldnt imagine running with 4.10's It would be such a gutless rig it would be ridiculous.
No it'll be a trail only truck.
anyway. its smokes. have you run a compression test?? this will tell you if you need new valve seals or if you need new rings or both.
Not yet I haven't. Figured might as well just rebuild it while I have it tore down.
dont bore unless needed that way you can save the block if something happens in the future causing you to need to over bore 
You make a valid point there.
