B16a Into 93 Integra(searched did not find answer)

I just bought a B16a XSi motor from Hmotorsonline.com… My only concern with the motor is wiring up vtec… This is what i dont under stand… If i unplug my LS ecu and Plug in the B16a ecu, The pins that i need for vtec is already bring used from the B18a(LS) right?
Vtec Solenoid
Vtec Oil Presure
Knock Sensor

PLEASE HELP ME OUT!

search more man, this has been covered a thousand times.

but i’ll tell you anyway. if there is a wire going into the pin you need to use, just cut it, you dont need it. for instance, if your running one of the vtec wires to A8 or whatever (i dont remember, its been a long time) and there is already a wire from the stock harness going into A8 then take it out.

The answer is here (at lease 50 different threads) you just need to search better.