If by "he" you mean dakotalover, I totally agree. With what he has now a 50mm would be perfect.
I was more giving a general example instead of recommending a certain TB. The reason being he has asked about cams and other mods that would be fine with a 52mm.

 

so if i did get the 52 mm i would have to upgrade my cam definetly. and if i got the 50mm it would be perfect for my current setup. but the thing is i dont want to buy something that i'm just going to have to change when i do some other mods but i dont want anything thats going to kill my truck untill i get the other mods. so what should it be 50 or 52?

 

if you are going to do bigger mods like cams, heads, ect.in the future.. then go with 52, if not then go with the 50mm.I have a 5.9 R/T and im about to get a 53mm TB, i have a cam, larger injectors, and alot of higher end mods though.

 

are rhoads lifers all they are cracked up to be? they say they add torque and restore idle quality and efficency at lower rpms but restore to full lift at high rpms? are these good to go along with a cam upgrade? http://store.summitracing.com/partde...p;autoview=sku