Originally Posted by Richiehd
Full rollers you might be alright. That .575 lift got my attention though.
His new springs are good for .575" lift...but his cam is only .504" lift.
I'd check to see if the old vortec sorings will manage the .504" lift without going into coil bind, and use them for the break-in period if they will work. Give the cam every advantage you can during break-in.