KMJ Maximum Race Series Aluminum Roller Rockers ?

KMJ Maximum Race Series Shaft Mount Aluminum Roller Rockers
Has any one used these? I saw them on ebay and the price is great ($199.00)but I have never heard of them. My motor is a mostly stock 440-6 with a mp 484 lift cam and dual valve springs. Thanks

Not really sure I'd trust $200 roller rockers. Ya gets what ya pays for.

don't do it!. when one of those imported rocker arms fails and causes a valve to drop into a cylinder, causing major damage, the 200 dollar rocker arms will prove to be a very bad way to have saved money.