Is there a 1.6 rocker arm for the mopar 360 engine?

[Street fighter]

I have a bored 360 engine with Eledbrock heads a small crane cam 454/480 750 holley, RPM intake and headers. The heads have a 600 lift max. I wanted to increase the cam lift using the 1.6 rockers if they make them.The car also have a TCI trans a 2200 stall and 323 pos. rearend.The car runs great but just like us all I want more power.I was going this way to keep from going into the engine until later with a bigger cam and stall.Do they make the 1.6 for mopar 360's? what would the lift be with the 1.6 and how do you get it?

 

[67 coronet]

http://chucker54.stores.yahoo.net/manciniracing15.htmllink provided.these are about the cheepest i have found with good quality and they are not cheep by ant means.harland sharp also makes some,but they have an even bigger price tag.changing a cam is not that hard,why not do that?