I have been working on my PRO 7 RX 7. I didn't run the cars this year because I retired this July and have been working on the house. Also the Rim fire came with in 3 miles of the house so I had the RV loaded up with all our stuff and we were ready to evacuate for about 3 months. So The engine in the racer was getting way down on power 2012 so I have been replacing things. So far I fabricated a header and 3 inch exhaust pipe and I fabricated a intake manifold. I also have ported the engine with the Pineapple race port template. After the new year I will rebuild the engine with ceramic apex seals. The intake I built fits a Weber 44IDF. I made my own intake because I wanted a plenum so I can pull all the CFMs since the carb is a little small.