[chas350]

I would look for a deal on the performer intake, it really does make a difference.
My son and I are about to do the same cam/intake in his 83 K20, it has a power/Rv type cam (unknown specs, rec by local engine shop to prior owner) and the stock ci intake with an Edlebrock carb, and it is nowhere as powerful as the performer cam/intake combo especially low end. Spend the extra money and get the intake also, you wont be sorry.