I have never used a dyno of any kind. I go by time slips. Sure there may be more to tuning than time slips but its tough to say something does not work when the ET gets lower and the MPH goes up on the time slips. That's not to say that what you are saying is not true, I'd say my combos are likely not as thorough or completely scienced out as what you build. That goes right back to what I said in my previous reply, it may be a crutch but on most home built cars it works. Are you a pro engine builder/tuner?
