valve spring ??? for the mopar guys

so you already have the 740 retainers but the tech guy said they wouldn't work with the new cam that lifts....??

A minimum of .050 Between each coil is needed, take one of you're springs and have it checked at a machine shop at the new cams lift, if solid subtract the lash.
Then check required spring pressure @seat, mid, full lift/or @.550 lift.