Hi ,
Opinions needed on this cam on a gen6 502 that has some modifications made to it. Here are the cam specs.
Back to Home : Cams : Chevrolet Big Block Mark VI (1996 - 1999)

EFI Hyd Roller Cam - Chevrolet Big Block Mark VI 293/303
Product Description
Hydraulic roller, fair idle. Good cam for high performance street applications with very strong mid-range torque and horsepower. Needs 2500 RPM stall converter, headers, 9.5:1 compression ratio and 3.73 gearing.

Advertised Duration (Int/Exh): 293/303
Duration @ .050 (Int/Exh): 234/244
Gross Valve Lift (Int/Exh): .575/.575
LSA/ICL: 114/112
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 2000-6000

What are the modifications?

Don't go any higher on the duration but you could increase the lift .025-.050".

You really need to call rmbuilder. Everything else is just an educated guess. I would say you want more lift.

Would run 1.8s or 1.85s on it.

Sounds like a decent cam but the lift is low. Maybe that's so you can use the stock Chevy roller lifters.