Allen! Have you considered CNG?

[zachs92]

i wouldnt do it. i work on natural gas engines (350ci,454ci,5.9cummins,8.3cummins,3304cat,3306cat ) for a living. you lose alot of power on NG, there always burning valves and needing new heads.

example, we use your basic chevy sb, all stock except for headers and edelbrock intakes and they only make 78hp, there rated for 174hp on gasoline.

[GMCwantsLS1]

ive drove propane trucks before, feel very slow. it burns much cleaner though.

I hear ya, no power at all! At least the oil doesn't get dirty!