only difference is the vp ecu doesnt have the highspeed aldl chip and has a slightly different tune in it which can soon be reprogrammed over to suit the vr engine better.it will run and drive ok as is though just may be a little lean and not quite have the correct ignition timing vr the vr engine to get the most out of it.send me a pm if you require a VR tune put on the memcal i can sort you out
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable