The mag block is a 1994 so does this have oiling for the rocker shafts?Im not using the mag heads because I trashed one trying to re drill for la intake. I know this has been covered before but what pushrods do I need also? The motor is going to be used in my 1947 dodge truck rat rod it is now running with a stock 318 904 combo.It is just used as a driver so I am looking more for MPG than Super high perf.