It's something I've always thought about doing to my Buick, but I never had the chance. Well, now that chance has come up. My Th350 exploaded in September so come Spring time the Regal will be back on jacks in the driveway getting a good once over. Along with rebuilding the TH350, I thought I'd dig back into the motor and see what's up, do a general inspection, that sort of thing. It being my very first, and so far only multi-cylinder engine rebuild I'm curious to see how it is on the inside 5,500+ miles later. I will be getting a TA performance aluminum intake that was made on a CnC machine, so the ports are as neat as can be. I want to take my stock cast iron heads to that level as well, and clean up any little bumps or casting flash I can see in the ports. It's free hp. The Buick heads have a lot more nickle than lets say a Chevy head, so they are in a sense hardened. What kinds of tools/bits and other things would I need to do this? Have any of you done this, or should I just sack up and pay a shop to do it for me? How much should it cost?