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haha well I should start with.. this is my first post.. in the Engine section :P hah. But right now I have a 1981 GMC, painted camo, lifted 6 inches sitting on 37's. Has a 1979 350 4-bolt main bored 0.030". Shes starting to run a bit rough so im rebuilding in the spring. It is a street/off-road truck, but mainly off road. I want all low end torque, and lots of it to get me out of some pretty serious mud holes. Anyways, I'm looking for a bit of guidance on my build, below are the links to the few main things that matter when rebuilding (cant list others cause i dont have my clearances for rings and bearings yet). So I'm looking at: