This is a little bit non-trad but I've been looking into turbo charging after taking Mr. Toad's Wild Ride in a friend of mine's beefed up Buick Grand National . A number of HAMBsters have helped me with the questions I've posed regarding fuel management , so I'm going to give back a little . Because I want to run between 17-20 lbs boost and use intercoolers I had to look at EFI . The friggin' things are expensive , complicated and I couldn't find my ass with both hands and a road map when it comes to EFI . I can usually make a carb run though . I called Barry Grant's Demon Carb . Lo and behold , they make several carbs that are blow through and you don't need to build a box around the carb . WooHoo !!! A number of their upper end carbs come with this option and can take 28 lbs boost. I'm looking at a Mighty Demon 575 cfm for my inliner using twin turbos . The blow through design part numbers end with the code BT , clever no ? One more option for supercharging that don't have them little electrical thingies all over the place .