Hi Ron i have a used comp solid street roller i would sell cheep. please pm me if you are interested.OK back to your question. This will be my first time using a solid roller cam my self. so i don't have much info to give you. but i will be trying a comp solid roller in my 73 440 dart soon. I plan on driving it on the street once in a while and my cam is 264 @ 0.50 and 634 lift with my 1.6 roller rockers. every body i talk to says i will love the roller so we will see.mopar65