They all dyno pulled 20-30 HP less than advertised. I used to get the weekly dyno engine pulls from the engine plant. :evil3:
When they were advertised at 210, they usually pulled 180 HP. :finga:
When they increased to 240 advertised HP, they would only pull 210 on the dyno. :finga:
I drove a Prowler with one of those engines and couldn't get the tires to spin off the line in a straight line, I had to nail it around a corner to break them loose..... :finga: :violent1:
That is why they increased it to 4.0 L, because of many customer complaints about lacking horsepower. :protest: