That cam actually does have a generous amount of overlap.
Hughes FT cams are usually rated at .008 tappet rise, and seem to have acceleration ramps totaling about 46*
from .050 to advertized, but it's hard to say with a solid, on account of the lash takes some of that away.
So by guessing;
I'd guess the advertized specs on that cam might be 256/252/109 and from that, the overlap would be 36*. That is quite a bit. But to get all of it, the install would have to be 116*.... which would generate an Ica of 58*, a pretty late closing intake, so you would need a lot of cylinder pressure for that to not get real soft off the line.
By advancing that cam to the spec of 104*, the Effective overlap shrinks to 24*, and the Intake closes much earlier (52*) to maintain some cylinder pressure. That's the way those cams work.
And they have to be like that to have enough powerband to work with the wide-ratio transmissions that are run behind them, and/or stock type Convertors.
If you had a close-ratio 5-speed M/T, or a 2800 stall TC/904, in that thing with a higher Scr say like 9.5,
THEN, you could reset the timing of that same cam to split the overlap which is 116* installed, and get the max effective overlap. But IMO, that cam would then be the wrong cam for the new combo.
All in all, for a stock compression engine, what you now have is pretty good.
