I get it... nobody will spend your money like other people will in this arena!!!
The comp XE256-268 run a single spring. They can be a bit noisy. There are so many cams that will fit your deal, just pick something that is in the 450-460 lift range and 220-230 @.050 duration and should be good to go. I'd prefer something on a 108LSA and install it at 102-104. Make plenty of low end grunt and run fine to the low-mid 5K RPM range.
