What should I change this year

My best times without the bottle were last September in Boise, ID, with an 11.571 @115.67 with a 1.593 60' (1/8 7.339 @93). Usually I race at tracks above 4000 feet. It's all bracket racing, so consistency is the priority. Have been debating the trans-brake thing for awhile, and even posted here about it last year. Right now I have front and rear line locs and launch off a two-step around 3000 rpm. I don't know if a brake would give me any performance improvements to justify the extra drivetrain abuse.

The aluminum wheels are the easiest yet hardest thing to do. It's either but the 15x4 and 15x8 Convo Pros for my 5x4 bolt pattern, or spend a lot more money going to the 5x4.5 pattern for more wheel choices.