1985 Capri with 5.0 ?'s

I pulled apart the motor in my Capri and when I put it back together I had a few parts to install. I put in my E-303 cam and roller lifters since I had them spare. I changed the push-rods and tapped and installed the lifter keeper with no problems. My question is if the stock valve springs will work with a roller cam. Since the motor had a flat tappet lifter and stock cam I have been told that at higher RPM's I might have valve float. But being and automatic tranny I will be just fine. Any one have any input?

Greg
 
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