talked with one of my friends today and he told me he had a 24 valve block for me today. said he would take $200 for it with all the internals due to too many engines in the machine shop. i have a 2000 4x4 and was wanting to build it from the crank up and was wondering what would be some good ideas if i was wanting to still drive and tow with it. i want to get as much as i can out of it but still drive it hard. i was thinking injectors, turbo, fuel system, etc. i know there are some of you that have built engines and i would like to learn more about it.