Converter multiplication ?

[Adger Smith]

Alan,
I agree that a dyno can lie. The numbers are usually off from one to another. We ran a 555 the other day that was over 125 hp variation from the dyno it just came off and came to us. No excuses for it. running 2 days later in the very same air mass with the same headers. Just looked like a good salesmanship job by an "Name company" We have also had just the opposite happen. The two sheets matched real close.
Good converter shops know & can tell if you have a true dyno sheet.
Before we got our dyno Marv always ask us for the numbers over the phone. He was most interested in the 2 highet HP & TQ RPM's. How quick it "went over" (fell off) and who's dyno. He only commented once about the numbers.
Just said ugh! thats off 25 or 30....
I'm of the opinion if you have numbers share them with the converter shop. If not you should rely on their experience.