Wish me luck! Magnum 5.9 engine conversion starting today (hopefully)

The lifters are heavy, but, to be fair, the cam in the R/T is pretty much a low-rev deal to begin with.

.385/.401 lift, and 250/264 advertised duration. That's very well suited to a truck, but its definitely not going to rev high. I'm actually surprised you got that much RPM out of it, especially with (I assume) stock valve springs).