I want a powerful EV Conversion

You will need the following components:

components

- motor & powerful inverter (Tesla Model 3 Rear Drive Unit, Tesla Model 3 Front Drive Unit, Tesla Inverter FAQ )

- batteries with high allowable discharge rate (Tesla Model 3 Battery)

- DC/DC converter(can be omitted for drag racing) (Tesla Model S DC/DC Converter)

- charger (can be off-vehicle) ( X )

If you are looking for a cheap ev conversion check the sister page.