Hey yall. Bought a cam and new valve springs to go along with it. I've done one cam swap but it was on a mustang. Anyone have a good set of instructions on R&R'ing the cam on a 4.3L V6 truck? How do I go about removing the intake manifold and fuel rails and crap? Will I need an impact wrench? I remember it helped on the stang a lot. I guess that answers that question. Will I need to remove the radiator to pull the cam? Didn't have to on the stang. Any hints, tips or degreeing the cam once I get ready to put it in? How bout the springs? Pull the rocker arms off, compress the spring, pull out retainer, replace spring, reverse order. Basic idea? On adjusting the rocker arms (I'm staying with the stock one's for now), do I just sit there and tighten them down until the pushrod stops moving and then back it off a 1/4 turn or so? Sorry for all the questions but the Stang seems to be an easier task than the truck is going to be. I plan on doing the install next week sometime. Figure give myself about 3 or so days just to be safe. Also, will MTI tune the truck once I get it running? I'm getting the Comp Cam 56-460-8 cam. I'm also getting the 986-12 valve springs with it. I plan on running nitrous or FI later on down the line (headers are on my list of things to do next). Thanks for the help yall.

Also. What about the lifters? How do I keep them from falling out of their homes? How bout the valves when I replace the springs? Should I pull the heads off to do it? I'm gonna have limited access to air tools so screwing an air hose in to the cylinder isn't really an option. Thanks for the help yall.

P.S. Should I go and buy a service manual for this?