Yes..... are the springs you have new? If they are old/oem...toss em. If new(ish) I would find out what (rate) they are. Take one off and get it tested, if you can't find what they are. See if they are close to what the cams needs are....no-matter which cam you choose. Make sure they are at/near correct installed height.
Springs are a critical part of the deal....whatever the cam. Weak or mismatched springs are a recipe for disaster. Clevelands with OEM valves are re-knowned for losing the odd head/pulling keepers thru retainers = hurt/destroyed engine. Not enough spring pressure is worse than too much... it promotes dropping valves.
Suitable springs and decent valve/valve gear are the best insurance you will buy for a Cleveland.... period.

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IF YOUR USING OTHER PEOPLES IDEAS YOU ARE ALWAYS GOING TO RUN 2nd.......