I've been thinking of going with an adjustable prop valve for a long time, and finally started looking at them. Seeing a Wilwood for about $40, I'm thinking of doing it. But I was wondering if anyone had any experience with them, and what kind of plumbing changes I'd have to do. I'm guessing I'd have to reflare a ton of lines and use different sized fittings, but I may be wrong. Any help would be awesome.