Well, according to the lobe specs in the catalog, your old cam should have had .141” lift at TDC, with the cam installed at 106.

Which means, in theory(assuming your .139 measurement is correct), the new cam would actually have a tiny amount more clearance........at TDC.

Both cams should be moving the lifter about .004/degree at that point in the lift curve.
So, if the closest point for v/p clearance is 10ATDC, you’d have another .040” or so tappet rise at that point.

All that being said, it would have to be a pretty lazy roller lobe to have 269@.050 and only have .139” tappet lift at TDC, installed at 106.
Should be .150” or a bit more.

All of which means the loss of all the clearance between the two cams still makes no sense.

However....... your .050 numbers of 25/58 come out to 263@.050, not 269.
On a very aggressive .430 roller lobe, the difference in lift at TDC, with both cams installed at 106 would be about .010”.

What are you getting for open/close points at .020 lift?

The lifter bore tool you’re using has the radiused end for the roller cam?

What did you use to set/verify the wheel is correct at TDC?

The cam card calls out what the cam “should” be.
You should be able to have the specs coincide within a degree.
If you can’t, either you’re doing it wrong......... or the cam doesn’t match what’s on the card.

You can double check yourself by plotting out the old cam.