I finally got the short block together and have the cam as recommended by Golen and UltraDyne. Specs are as follows:

Cam: UltraDyne
316000 S56161
FF288/296-10H
Dur@050 Int 231 Exh 239
Lift Int 559 Exh 585

The heads are D0OE-R CJ Cast iron heads with the stock rockers. I'm assuming that the stock springs will need to be updated for this cam but am not sure how to calculate what springs I need. Any help would be greatly appreciated.