318 Roller Build - Thoughts?

Sounds OK, being a 318 guy, heres what I would change.

Performer manifold, Holley street dominator. The Performer RPM is a big port manifold.
Use the springs lunati recommends.
Thin as hell head gasket, adjustable rockers. (never used a hyd cam and adj rockers, not sure what pushrod you would use......)

Power?

340TQ at sayyyy........ 3K
275HP at sayyy......... 5K

Thats coming from Bobby's Headtop dyno, LOL.