You can easily run up to 20 lbs. of boost on the stock 14B. Hell I ran 20 lbs. on the T-25. Im not saying it ran efficiently but it pulled never the less. With a DSM you need to follow a very simple upgrade path.

1. Fuel Pump (Walbro 255)
2. Fuel Pressure Regulator (Rising Rate Style. Stay away from the bullshit B&M)
3. AFC (Self Explanitory)
4. 550cc Injectors (Makes life a little more simple.)


Following that simple path and 20 lbs on a 14b will make for some fun driving.