Should I go with dual exhaust or single exhaust for this propane set-up? The carb is a single 1 barrel so I will need to replace the intake to install a 2 barrel. Should I go with a 300 or 390 cfm carb? What is better, aftermarket aluminum or factory steel intake? What sixe exhaust should I run for mileage, performance and quietness? I'm definitely new to this. Ha, the old gimy doesn't even run yet and I haven't even driven the truck yet either.
