dude i think i just found that website you bought the engine from. they are from Montreal right? yeah i dont know, it kinda looks fishy because i saw like three videos so far of supposedly "different" 2jz's and they look like they have the same compression readings. and at the beginning they zoom into the serial number on the block but then when go do compression test the lighting changes very slightly.... i hope that when you get the engine you can do a compression test and get the same results that they are promising. and if not i will personally go down there and give them a good ass kicking since im only a few hours away.