Normally I just use a quick post but this will take a while. What I'd suggest if for you to make a "map" of what you want to do. Decide what to do first and then make some kind of budget so you can accoplish it. Pick up some books and read them to get a better idea of what you can do. "How to hotrod your buick v6" from hp books, The buick powersource book, "V6 performance" by pat ganahl, "Super power" from S-A design, and "turbochargers". These are a good start for learning about what you want to do. If you're going to piece together your car then start with the easiest Thing which is an intake. I personally prefer the 4.1 because you can put all of the factory parts back on it without any problems. Cut the 4 hole top and make it more like a holly. Add a 1" hiker to increase charge speed. Change your timing chain and add a high voulmn oil pump. Buicks suffer from oil starvation on the crank and rods so it's cheap insurance. If you do the intake at the same time as the timing cover then change your cam, but your limited to a .420 lift, but use Rhoades lifter set for better low end. Open up the exhuast but stick with 2 into 1 and then split it. It will give you better bottom end and Cut some of the exhast back flow. If you remove the heads have them cut for sbc valve seals and reduce the height so you can use a higher lift on the cam.
