[clayfoushee]

Either will haul ass. Because of history, there's a bigger demand and hence higher resale value for SOs. Doesn't matter if you want to just drive, they're both desirable, but from the crossbolts and inset allen bolts you described in the ridge (in your e-mail), you do have an SO.

If you do want solid lifters (pre-68 blocks), you will need to convert that hydraulic lifter block. Any shop with FE experience will know what to do.