if you search you will find what you're lookin for
first thing would be to change the ecu to either a 2000 ecu or to a power fc so you can take advantage of a higher rev limiter. instead of the ghey 7800 that you have now.
second think about getting a new car cause celicas arent blazing fast lol.
to get big powr you gotta go Turbo. N/A will be more expensive and get less power in the long run. (trust me I know