14CFM short on a 300 plate, not sure what the internal plate is that you are testing against but this is not a good calibration.
The internal plate I was using was the 625cfm plate. I'm going to play with the settings alittle more tomorrow when I get up to the shop.
I still need to study more about what's going on in the flowbench. Like I said, I'm very novice about flowbench calibration but I have a understanding what the bench is telling me as a flow test and do my porting. I just worked on benches that were step up from previous jobs (Superflows) and my old bosses handled the calibration of their benches since it was not my equipment. Its just big learning curve and a big investment that I love