Use Rhoads lifters, with the 2802. Will work great in both engines. Plenty of low end torque, smooth idle, lots of vac.
But, most here will agree that the 2802 is quite small for a 455 with 9.5 CR & ported heads.
Some larger cams might be a Crower 60243, a Howard's 410051-14, or an 041 clone/Rhoads lifter combo. And some like the Voodoo cams. Some like bigger cams in 455's.
But, as most know, there was a very long 455 cam thread here, not too long ago, with many differing opinions. Actually lots of threads dealing with 455 cams. So, that's all I'll say for now.
Here's a couple of the longer threads.
http://forums.maxperformanceinc.com/...light=455+cams
http://forums.maxperformanceinc.com/...light=455+cams