Trunk gap problem after new 1/4's

Sounds like the body shop/resto shop just slapped them on. I've been involved in the swap of quarters, roof, dutchman on a '73 (or '74) Challenger. We had to modify some parts to make them fit. Was also involved in putting lower quarter patch panels on my Barracuda along with trunk extensions. These pieces don't just "drop into place". Welding shouldn't be completed until gaps are right.