Act vs Sat

Applying to College
1

I have to send a Act or Sat with essay to University of San Diego.

Which is better?

Act:
Composite:31
English:29
Math: 29
Science: 30
Reading 35
Writing: 8

Sat
Composite: 1420
Reading/writing:7740
Math: 680
Writing: 17

Should I send both or just one?

2

Bump because I cant submit my best act

3

I would “google for ACT SAT score comparison” and you find charts that will help you determine which is best.