I'm assuming it was bought for one of my dad's second gens... Googled and found nothing on Crane's site so I'm assuming it's pretty old..
I did find this info
Crane
114051 SSH-310-NC, hydraulic, rough idle, good midrange hp
Intake Open-Close BTDC-ABDC 40-90
Exhaust Open-Close BBDC-ATDC 88-42
Degrees Advertised Duration Int. 310 Exh. 310
Degrees Duration @ .050 Cam Lift Int. 236 Exh. 236
Running Clearance Hot Int .000 Exh. .000
Gross Valve Lift Int. .485 Exh. .485
RPM Range min 3800 max 6800 valve float 7000
Looks like it's never been run either
I did find this info
Crane
114051 SSH-310-NC, hydraulic, rough idle, good midrange hp
Intake Open-Close BTDC-ABDC 40-90
Exhaust Open-Close BBDC-ATDC 88-42
Degrees Advertised Duration Int. 310 Exh. 310
Degrees Duration @ .050 Cam Lift Int. 236 Exh. 236
Running Clearance Hot Int .000 Exh. .000
Gross Valve Lift Int. .485 Exh. .485
RPM Range min 3800 max 6800 valve float 7000
Looks like it's never been run either