Consider upgrading to wider pushrods maybe (that will fit). I was amazed to see the difference in strength in wider pushrods vs thicker pushrods. Saw a video of pushrods at 9000 rpm and they looked like wet noodles...so I went with Manton series 5 rods on my car. They use a molten salt heat treating process and have a really high tensile strength. $250 well spent IMO.