1993 Dodge Ram Timing

Engine Mechanical problem
1993 Dodge Ram V8 Two Wheel Drive Manual

An uneducated mechanic without marking before disassembling the engine has got my timing off. No specs can be found on the vehicle. Working off of number one at tdc at what degree do I set the timing? (Magnum engine). Computer is compensating but rpms are slow to decrees when you press the clutch. I'm trying to set timing like a shot in the dark, were should it be?