Well they do not like a chopy cam. Will it work for one, yes, but not the greatest choice, esp on a remote mount.. IMO a 3600 for a turbo is a bit big unless you are full out dragging.. If you plan to stay NA for a bit, then the cam selection that you are leaning towards along with the stall, seem to be a pretty good choice..

 

It will b na for a few years so the turbo if it happens wont b for a while. What gear would u recommend for my truck na? If i turbo i will make the appropriate changes then.

 

go with the 4.10's you wont regret it, or atleast i didnt. im on a 31" tire and 70mph is about 21-2200rpms. straight highway cruise set, it rarely ever downshifts with a torque-less 4.8 and my last tank was 19.5mpg.

 

Would 3.90s make much of a difference in mpg or performance compared to 3.73s or 4.10?

 

Everyone I've seen with 3.90s wish they just stepped up to the 4.10s.