I was told BME style (horizontal) injector blades was believed to have better throttle response, which seems quite plausible. But the advantage it gave in response is negated by the more turbulent airflow into the supercharger. With the blades just above the supercharger inlet, the air is disrupted as it flows into the inlet. The tall (TF) style injectors 3 or 4 hole give the air time to straighten and be better guided into the supercharger inlet thus having better fill of the rotors. The 4 hole injector is preferred over the 3 hole as it is thought the airflow over the car is actually wider and flatter than it is tall. I'm sure this is backed up by wind tunnel results somewhere, but I have never personally seen them. Funny cars do not get the benefit of sticking the injector up in the air but there is lots of data on how it flows over the body and the injectors and (more so) bodies are designed to take advantage of this flow. This is also the reason a FC tends to out MPH a dragster in the back half of a run. The body is more aerodynamic and therefore has less drag than a dragster does with everything hanging out in space. The dragster on the other hand has the advantage of length giving it a better weight transfer early which leads to better early acceleration and quicker ETS.