proform rockers ?

I had a set of them on my old 340 @ they are what you get for 200 some bucks! JUNK! check the lift @ the valve with a dial indicator. They will be all over the place for ratio! Ask how i know! One rocker was in the 1.3 raito range! (No wonder the idle got choppyer & throddle responce took a nose dive!) I had nowhere neer the .545 lift @ the valve i was checking it with a solid lifter. Went with comp pro magnums & that made a huge diffrence lift was withen .005 of the .545 overall lift @ the valve! Id stay with the 273 rockers before i ever did the pro forms! I've got sets of oe 273 rockers if you need to replace them.