The heads are currently being worked by the GTM they started working on the heads. I hope they are done soon cause the car being down really sucks right now. I know once I get them back it will be sweet. I also just bought the HD flex plate for the transmission. I have read some people changing the pistons and rods and actually working the bottom end. I want to keep the bottom end stock right now I have only 8500 miles on the car and the block is pretty stout. GTM even told me that the heads on our motors is where the power is and unleashing that power might not make power close to a turbo or supercharger kit but the reliability is still there and hearing that engine scream is music to my ears. Plus, I still smash on FORDS all day.