Ok, so two points of the injection system make me wonder.....

Carbed, you get worse vacuum as you increase above ideal carb size- I always thought the larger throttle bores allowed a quicker equalization of vacuum, thus a quicker drop under load....
....So how does this play into a throttle bodied setup? Or MPI? I would assume the same, given the total surface area of flow...Is an injected system less prone to this, given the map communicating to alter ignition/fuel delivery?


The other thing- injector placement. Straight towards the valve? How far protruding into the port? I was thinking about it, and it would seem a bit of protrusion where airflow would whiff the fuel off at shut-down, may decrease long-term deposits/buildup... at the expense of port flow, ofcourse. Seems service life would be increased somewhat.


Again forgive my ignorance. All I know about injection is how to replace parts/ read a scanner and do basic diagnosis. Never really studied the theory, performance, etc.