The 942 looks like it would work to. That one never came up in my search. And the comp cam rep never brought it up either. Even when I asked about a single spring. I am very thankful for this site and all the great information. I already have the retainers, and I have the part numbers for the locks. If summit will exchange the springs that will be the route to take. They say there instock. The only question is if I need over 300# pressure at open. I have a 296 duration with 246 at 50 on the exhaust and .510 lift. ?