I think you should wait a bit. NOS debuted direct port system at this year;s PRI Tradeshow that doesn't require drilling & tapping of the intake manifold. Basically the new system uses a new type of nozzle that sandwiches between the stock injector and the manifold. I am still waiting on my updated price lists for NOS and as soon as I get the info I iwll be able to post prices & part numbers.
-Mark