Snowboy , I have a 500efi cam that is used along with stock lifters, the lifters have about 25 hours on them. I went with a bigger cam. My motors are also procharged efi. Sell it for 250.00 plus shipping
I think this would work well. What you need to make sure is if your 454 was roller or flat tappet. You cannot mix flat tappet cams and roller lifters, or vice versa.