CAn anyone help me how will i know if a cam is a model EF,EG,EK,GSR,CTR and ITR.. Its hard to know determine cuz theres lots of cams sold out there and they say that this is this this is that.. But how can i be sure im buying the right cams if i dont know if its what they sau it is.. Please i do need help..

Is there a link or site i can go to check the cam profiles so that i can check the cams myself? Tnx..