Need Some Upgrades for my 306

HI ALL!!!

I've been off line for a while and just want to ask for help on some set up improvements for my 306. The components I actually want to improve are: TB, MAF, Injectors, Fuel Pump/FPR.

Please list dimensions and if there will be any improvements or let me know if it doesn't even worth the changes.

Thank you all for your ideas.