according to my old erson catalog. it's a high flow Im. 286/240 duration, .492 lift, .022 lash. cam part # is 420721. says, it's a hi lift , short duration,, delivers strong power from 2000 to 7000, good idle, good for auto with gears.
Thanks Perfacar !
Yeah , john at erson sent me the cam card specs yesterday afternoon. same info as you sent over perfacar , cam lift probally 492-510. stout cam for sure ! it will be used with a 273 commando, 4 speed and nice gear set .