I think it's just the other guys catching up.I talked to a friend of mine who works for a nascar engine building team in north Carolina,and he said that one of shane grays engine guys has been spending 18 hours a day at there shop trying different intake manifolds and fuel injection fuel and timing combinations,and they are just figuring out what works and what doesn't.The summit cars are running Hogan intake manifolds.I find it surprising that the secret in those manifolds hasn't slipped out yet.It used to be the cylinder heads that helped make all the power,now it's the intake manifold and knowing how to program the ecm for timing,fuel curve,and shift points.Jason Line is an expert at that.