I have several questions regarding the engine in my 1990 V1500 Suburban. This ‘burban is used mostly for family vacations and is loaded full when we travel. It doesn’t see any extreme off-roading. I want a good balance between torque and horsepower. Here are some basics about the truck: • stock engine internals and heads • stock exhaust manifolds with 3” catalytic converter and cat back • cfm-tech goodies: TB and injector pod spacers, Hypertech Power Charger, adjustable FPR • 700R4 trans • 3.73 gears • 31” tires • 124,000 indicated miles, though I believe there are more as I had to replace the odometer when I bought the rig. The problem I am experiencing is a lot of blue smoke for several minutes after start-up. This is fouling my plugs and doing who-knows-what to the combustion chambers and cat. If I have to take the heads off to get the valve guides replaced then I may as well take the whole engine out and do a rebuild on it. The advice I need is on the head, cam and exhaust selection. I have looked all over the board and believe that World Products SB-Chevy S/R Torquer Heads are a good fit for my motor. The reason I don’t want the Vortec heads is all the nickel and dime stuff, as well as the requisite GMPP intake manifold. If you have any other recommendations then please feel free to offer your opinion. As for the cam…is my stock block set-up to accept a roller cam? Is it worth it to go to a roller cam? What cam should I look at? I have seen a lot of talk about Comp Cams stuff here. Lastly, what headers should I run? I don’t have any lift and don’t want to have to move anything to make the headers fit. I have seen too many recommendations to know what to do with headers. Thanks for all the help and advice. I really appreciate it. Kevin P.S. I know I will probably need a new chip. Can you give recommendations as to where to get this done?