Bad Meds, how fast does it go now? Not knowing what a lot of $$ is to you, and if you went this route it would be cool to see speed increases step by step.
Exhaust and carb work-
Then ignition like full MSD-
Ditch the recirc waterpump for a cross over-
Tell your friends to get out-
The crossover would be the cheapest, and I would be curious to hear about a gain if any.