MP 292H cam too big?

Passed on a camaro driven to the track every weekend running 12s for 2K. Bought a 71 scamp w/318 and a built (by who nobody knows) 360 on a stand for 3800. Happy with the choice even If the car I bought has been setting on the side of a garage for years and turns out to be a swinger.

Ran the car with 318 at the local strip 7 or 8 times since. Started in 17s. Put 3.55 ring/pinion and sure grip carrier in the 8 1/4 rear, test and tune street driving, and finished the season@ 15.17 best et. on street tires (traction limited for sure).

Decided to take the 360 apart and verify the build before installing it. It was supposed to be 10.1, bla, bla, bla, 350-400hp build. What I found was not what was advertised. Decided to build it. Wish I had known more before getting started (first build). Machine shop prepped stock crank, resized rods, ARP rod bolts w/ other work, turned/posished crank, pistons worked to same weight, entire rotating assembly externally balanced (with damper and TCI external balance flex plate). Had given machine shop block/head numbers and purchased (shop's) recommended pistons (KB 190s).
Problems:
Have MP 292H cam (.508/.508 lift), No cam card