High Torque

I’m using a 350 chevy small block from a 1984 suburban, I want to add vortec heads and a high torque cam.?
How high of a cam can I go before I need to shave the heads?
Call comp cam tech line they can tell you how big you can go. Ive personally used the holly truck avenger cam package in regular and vortech and was very pleased with the juice available. These were 4×4 work trucks used hard in the oilfield including heavy towing
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