Blood enterprises in auburn
they dyno tuned my built 2.8l on propane
and got 170 hp from it
wish I had video they had it going 96 mph with 33s
it was cool
I dont know the name of the shop now, But back in the day it was carb connection..Then changed to carb and fuel inj connection..Im pretty sure they have a different name now. They dyno tune some big hp rigs, In totem lake as well.