[sapsz28]

go for the beehives with less mass it will allow your valvetrain to atain its max rev range and then some and it will do it alot quicker due to its lighter mass lunati and or comp cams make A1 quality beehive setups.

PS have you physically checked your springs to make sure one of you springs or any part of your valve train has not broken or loosened up ie rocker not torqued properly just a hunch