Cam swap ,i guess im living right

The old cam was hyd flat tappit .484 /.510 lift and 234/244 duration @50.

The new cam is .507/.507 lift and 254/254 duration @50.

You guys could be right about it was never installed correctly from day one.I have personally put about 80 passes on it .Just a little scarey to see that i was flirting with certain death to the 408 and didnt know it .

After sleeping on it i have decided to pull the heads ,port them ,and then have a valve job done .Im gunna get all new retainers ,locks ,and springs.I will let the machinest set it all up.

Yes its an added expense ,but i cant see the logic in risking dropping a valve over $300-$400 and ruin the whole motor.The port work im gunna do to the heads over the winter will also be a hp gain .May as well as all i have to do at this point is remove the headers and unbolt the heads ...