Which scores should I send?

Took both the SAT and ACT, but totally dropped the ball on prep and went into both cold.
These are the scores:

1510 SAT
780 ELA
730 Math

34 ACT(w/ writing)
36 English
30 Math
35 Reading
science score is still unreported, for some reason, as is writing. Will update as I learn.

I’m applying to Chicago, Michigan, and Tulane in November and haven’t registered for the upcoming SAT, which means these scores are basically my options for now. I know supposedly the 34 ACT is considered slightly “higher” comparatively than the 1510, but is the 30 math score gonna skew things and kind of screw me over? Especially at a school like Chicago (1st choice and ed)?

Wait for the science score before decision. IMO, you may want to submit both and let the adcom pick the best they want. Don’t rely on the concordance table. ACT Math 30 is not too bad if not for engineering. Your SAT Math 730 is basically the same as the ACT Math 30.