Did this one on a 50 Ford sedan many years back.

The offset to the upper and lower spindle pivot points will end up with a tremendous amount of camber when inverted.
30 degrees or so as I remember.

I've heard of guys extending the upper A-arm, but I didn't have the equipment to do that at the time so I got to do the job all over again and return the spindles to normal.

Some guys lower the 49-53 Fords by cutting the rivets loose on the lower A-arm and welding/bolting in a spacer block, but that's really no different than cutting a coil.
Only thing that happens there is the bottom of the coil sits in the same plane the lower A-arm original did and the spindle sits higher which lowers the car.

One fairly good way to do it is to make up a couple of 1/4" tabs (two per side) that are welded - and suitably gusseted - to the top of the lower A-arm just above the original pivot point.

These tabs will have a threaded Acme type bushing at the pivot point that will accept the original lower Acme pivot bolt.
You don't want to get too crazy here as far as drop goes.

Measure center to center of the original Acme pivot bolt hole and the new pivot point to see the actual amount of drop.
Since the tab sits up on top of the outer end of the lower A-arm, the tab will be shorter than the actual drop gained.

Using this tab method retains stock suspension travel.

Three inches is too much and two inches with stock coils is about right.
The three inch tabs with two coils cut will get the car down so low that you can't roll a tennis ball under the front crossmember.

One coil cut on these cars - with nothing else done - is about right.
You get a touch of lowness and the car is still very practical for most driving.
One and a half coils cut is about the max you should go.
Two coils cut will have the lower A-arm lying on the rubber snubber which is not so good.

I know, some of you want a tremendous amount of lowness, but it's completely impractical, not to mention illegal as far as scrub line laws go.

Nice and low is one thing, stupid-low is another....