Valve spring removal ???

MY cam card for my Thumpr cam said i had to remove the inner valve springs for break-in.

I nearly shat bricks at the amount of extra work this would be and called my machinist (builds race engines by trade)

He said for my cam don't worry about it, they write that on the break-in procedure for every cam and that the mopar lifter bore is heaps bigger than a chevy one and can handle it easily.

For a really aggressive cam this might be 100% necessary, but for most hyd cams I'd say it's optional.

I didn't have any problems whatsoever. Just my 2c