hilborn injection
Get the racecar book that OBG talked about. Mr. Szabo explains things so that even I can understand it! I run a stack system on a 406 smallblock Chevy with good results. Get a leakdown tester, also a set of bypass springs from Hilborn would be helpful. I can tell you at any given run what my A/F is. Call Hilborn, and talk to their tech guys, they will have some questions for you about your set-up, so be prepared with barrel valve leak down,nozzle size, pump, etc. They are VERY good at fixing problems over the phone, I cannot praise them highly enough! When you get it set and working right, it is very easy to tune and a joy to work with. Also, I would get an air density gauge from Speedway or Kinsler, it is much easier to tune with than a weather station and much cheaper. suicidebomb