[Keithc8]

Who the hell told someone they could deduct 100 to 150 from the open spring pressure just because they went to a BeeHive spring. The main thing about a BeeHive spring is that it is smaller at the top and you have a lighter retainer. The design of the spring is also suppose to have better harmonics for better valve control. I would not run but about 30 to 50 lbs less with a BeeHive spring depending on the application. They have there place and they are not always the best thing to use. There is way more that goes into this stuff but this cam **** has been beat to death.
This lash deal is something else that most people do not understand. There is a reason for it and it does not go anywhere close to zero when the engine gets hot. It all has to do with the design of the camshaft and the opening and closing rams. If we got into a camshaft discussion it would take to long for me to type out all of the information about them.
We can set you with anything you need and cut through the bull****, it is that simple.

Good luck, Keith