we ran hughes engine Hydralic cams for 6-7 years in IMCA dirt track motors with a lot of success and alays spoke to Dave about what we needed more out of the corner and more straight away speed and we always listened to what we needed.He would say to check stuff and make sure and always check just to make sure e didnt miss anything.The last 3 years won 3 championships and won 30 out of 61 races.The times that Dave was not in I spoke with I believe his name was Kevin.