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Grinding a cam ain't that big a job,
No, but selecting the maximum area under the curve which will fit on the Packard cam core is. You can't grind air. There are a lot of modern high intensity profiles which are too large to fit. There just isn't the material there to fit inside the shape.
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I gotta believe the springs and keepers can be sourced from other applications.
Just tell me where to find them. Packard used one of the largest OD/ID springs ever put on a modern V8. Yes, I use higher performance springs and retainers all the time. I've used Cadillac V8, big block Chevy V8 springs; however, they all require machining of the Packard V8 valve guide boss because they're smaller ID.
It's not difficult to change the springs and retainers, just costly. When we're already spending $1500 on the cam kit, the extra machining just ups the price.
jack vines
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