well a 261 degree cam closes 6.5 degrees later than a 248 509 mopar cam 261 - 248= 13 /2 =6.5 half the extra duration is on opening. and then it's a solid so that really comes into play with the way a solid works with it's lash and positive opening and closing.
Since I am a bit frazzled with all of this stuff, Isn't the whole theory of a later intake closing still relevant? If the intake valve closes later with the piston rising in the bore, how can it be building more pressure?
