I don't know if it would cause the knocking, but with the bigger injuctors you need the ecu chipped and tuned to the injecters and the mods on the car, or it wont run right.With the ecu you have, who knows what it for. The car will run, it will probably be mega rich.
On another note, he has hydrolic lifters, right? I have A KA, so I am not sure on the SR, if the lifters are faling it will knock or tap pretty good, and if it charges up it will go away.
|