Don't worry about the propane setup. I just recommend thinking about tank mounting. This is critical for DOT specs. Bulkheads have to be placed and vapor barriors installed. Not a bad deal to do, just time consuming. Intake duration doesn't have to be long, but a bit longer exhaust helps evacuate the extra consumption of Turboed charge in the cylinders. If boost will be down to the 6-8 range, there will some areas of fudging (doesn't have to be "dead-on") if boost is going to be higher, consideration of cam selection needs to be reviewed and is more critical. Propane is higher in BTU's which represents higher octane. Remember it is a dry fuel (vapor) so your consideration of where to introduce the LPG into the system should be thoughoughly thought out.