Welcome to CHR!

Sounds like you've got a project car - always fun, but my first impression is that that's way too much cam for the street. Lunati's site says the following:
Solid, rough idle. Good cam for bracket racing in 454 and up cubic inch motors with cast iron heads in a light weight car. Needs 4500 RPM stall converter or better, headers, 12:1 compression ratio or better and 4.56 gearing or better.

Advertised Duration (Int/Exh): 316/324
Duration @ .050 (Int/Exh): 268/282
Gross Valve Lift (Int/Exh): .620/.632
LSA/ICL: 110/108
Valve Lash (Int/Exh): .030/.030
RPM Range: 4200-7600

I believe the heads are the early 70's L88 items - could be great or "not-so-good" depending on just how much work has been done to them. I do know that they were prone to crack at the rocker arm bosses and have to be reinforced or repaired. With that monster cam such has probably been addressed.

Pat McCarthy is our resident BBC master and one of the premier engine builders in this country. He will be able to help you out, re; what to do to dial this one back a bit for street manners!

Have fun and let us see some pictures.
Glenn