I drive my car every day with 70/30s, no sway bar, and 4cyl springs with no problem whatsoever.
It sits about 1.5" lower than what it did with the stock springs, and looks good at that height.
Yours being a vert shouldn't be that much different.
Just spend a day with both of your cars in the garage, and swap the front springs. If you dont like the way the vert handles, then just swap the springs back. But I doubt you'll have any problems, and if you do, then you are a wussie Josh
And if you think the vert springs are too stiff or make the 2.3 car sit too high, I'll give you my stock springs with 1 coil cut for shipping costs.