Should I send my SAT scores?

Hello CC. I’m a senior and would appreciate some advice regarding score reporting. I took the SAT twice and got a 2150 super-score (640 reading, 800 math, 710 writing). I already sent these scores to a few colleges, but I recently found out that I got a 34 on the October ACT (35 english, 34 math, 33 reading, 32 science). In your opinion, should I continue sending my SAT scores to colleges? Or should I just send my ACT scores from now on? I’m applying as an engineering major, so math scores are important. A 34 is better than a 2150, but an 800 would really help me as an engineering major. What are your thoughts?