Go with a simpler more stock, cheaper, and readily available engine with less horsepower.I don't have a clue what "we" are going to get, but like I said, it is all over but the crying for some already.
again? here ya go cut and paste.
The big impetus for engine rule changes is NASCAR’s desire to lower speeds (which, it is theorized, will improve racing by lessening the effect of aerodynamics making it hard to pass when cars get close to each other).
There are lots of ways to decrease engine horsepower, but remember that teams have put untold amounts of money into designing and refining the current engines. Designing entirely new engines is a major undertaking, and a risk to mandate without pretty high confidence that lower horsepower will indeed help the quality of racing.
For 2015 NASCAR has gone with the simplest solution: a 1.170 tapered spacer that they expect will reduce power by about 125 hp.