i have an old atr 212/206. i am wanting to send the cam to Dan at DLS to get his cam retainer as i am using the brass piece against the block and a spring loaded cam button. my question is could i run solid roller lifters with this cam or do i need to get another cam? i am running the 885 lifters now. i don't drive the car much and would like to have a little more rpm if i needed it got a couple V-8's with the little blue bottle in town i want to touch up good.............thanks Bob