1/4 mile times

As suggested, I wouldn't spend another dime on parts unless it's tuning stuff, (jets, plugs, adv bushing/springs) until you get the current combo sorted out.

There are people here that have been WAY faster than your car is capable of running, tuned cars with similar packages. Some have given you very helpful advice, I hope you take it positively and run with it.

Don't take Bob's comment the wrong way, you need to get the tune up right before you can figure out if anything honestly needs to be changed. Right now your car is a dog off the line if it won't even turn the tire. My guess is that is rooted in the ignition, cam/converter combo.

Changing the case is a waste of money right now.

Until you answer the timing split it was running at the track and the current timing if it's been changed, you're chasing your tail.

Good luck with it and have fun.