As was pointed out in the other thread, it's drag racing that sucks. Well, not drag racing but certainly NHRA's interpretation of it.
First, bring back the full 1/4 mile, NOBODY races 1,000 feet!
Next the classes need fixing, let's start at the top with Top Fuel. It's time to go back to the wild days and let them run whatever they want on the motor. Forget Roots supercharging, lets bring out the twin-screws, turbochargers, and even centifugals. No limits! But they'll go too fast you say, no problem! While stock blocks would be fun, they wouldn't last, so bring the cubic inches down from 500 to 400 and require stock head castings (that they can then port, modify, bigger valves, etc). That means you'd see some LS-headed monsters or even the return of a Ford Cammer motor (only this time as a DOHC). That would bring the power back down sufficiently, and the other thing to get the speeds down is shorten the wheelbase up.
Now, Funny Car, obviously the engine rules need to mimic TF, but we can't shorten them up any more, so let's go back to the days when they pulled body molds off of production cars before hacking. Let them extend the nose, say 12", and add lower skirts and the rear spoiler. Honestly, this class would be a fun place to let the factory blower motors go at it with unlimited rules. Think about Hellcat Challengers running ZL1 Camaros and GT500 Mustangs all with the blowers hanging out of the top. Oh who are we kidding, funny car has nothing to do with regular cars! Let them run the old vintage bodies! There we go, that's MUCH better.
Pro Stock they've actually been working on. EFI this year and no scoop is a big plus, but the class is still way too bizarre. Now here is where we could have fun with stock blocks and heads, but let's allow boosted stuff in. Who wouldn't want to see an AWD GT-R face down a GT350R Mustang? Keep the tube chassis and the Lencos, that's fine.
Now, let's bring Super Stock back up to the Big Leagues, but use all of the new factory drag cars. People are paying big money to see Cobra Jets, Drag Packs, and COPO's go at it, so let them go at it!