How much HP from SBM ProComps? Well... 670HP!

yep it really depends on the person when it's all said and done , do you believe that person is able to produce a consistantly accurate reading or is there too much going on around it all to do that , I'm not saying Mike did anything wrong or intentional deceptive , he just did the same thing every time I'm sure and the result was maybe skewed the same every time through a programming or parameter error , what Dynos are good for is comparing two things at the same time , run 2 engines one after the other on the same day in the same weather and you will get a result you can compare between them .Now if one is known to be x hp y tq then you can use that to figure what the other is to a reasonable margin of error but individual results will always be suspect .