How to prepare for engine dyno?

are you saying they all worked the same or none improved power ?

None of them made any appreciable increase in power vs not running one at all. My AirGap intake is gasket matched and some light porting work was done to the heads. Carb is a 800 cfm Edelbrock Thunder series.

Did he have a Super Sucker? My dyno guy keeps them in stock and said most people that show up without one leave with one after they try it on the dyno.

I plan on looking into these more. I never thought I'd say it the whole time I was building the engine, but while 500 hp is fun, I want more!