the last time I used Vrbancic Bros. DTS dyno in SO CA it was $500.00 a day plus fuel, that was in early 2005 The local Pro power dyno in Madras,OR is $500.00 a day also. I do all my own tuning and parts changing so that prtobally doesn't make it cheaper. it' my motor and I want to work on it my way, not pay someone else to do it their way My feel on a tight lash is ultra tight to some and real tight to other guys that build motors, we all have are own ways and feel