the cuts u did on the stock manifold, to mate to the plenum looks similar to what i origionally tried on my first shot. however i had clearance issues with the alternator bracket and my upper plenum.

what is the volume size of that plenum, roughly in Liters.

also i questioned the removal of the injector vorex' because the were origionally designed to allow the injector pintles enough time to get a wide enough spray pattern before air divergences collapsed the atomization. so no knocking just curiosity as to power lost or gained.

for my manifold i was abled to carbide flex hone all the runners to 68mm and leave the injector vortex' in the manifold, only becuase i wasnt 100% of their actual real world efficiency. however if you have some experience insight on why they dont have to be there, then the port job you do, seems fantastic!