Well heres my problem I bought these heads that have been ported and bigger valves.The guy I bought them off of cant remember what springs he installed on them.Heres all I know about the springs they are comp cams dual springs but I dont know which ones.Is there anyway I can have the spring tested and see how much lift they can handle?

 

Compress them to just before coil bind and measure them.

You can also have the spring pressures tested - Gil Davis should be able to check for you.