[Mr Twister]

Originally Posted by Tom Vaught

So Mr Twister, what was the original Boost Level vs the increased Boost Level of your boat engine?

Boat Engines typically run cool so they can be leaner vs a car engine and Carbs typically have a pretty wide range of Air/Fuel ratio vs the speed load.

Carbs can actually add more fuel with the same main jet size depending on signal to the jet.

Tom Vaught

5.5 no intercooler, to 6.5 BELOW the intercooler installed at the same time. I think you lose 1 pound of boost due to the intercooler on this application. The engine does run a steady 155 deg. I havent run a roots blower on a car, so this may not be apples to apples.