I currently have mid-1400 SAT and 3.8 GPA.
It seems kind of impossible to have 6 1st tier ECs.
Read this blog and redefine what you mean by 1st tier-
https://blog.collegevine.com/breaking-down-the-4-tiers-of-extracurricular-activities/
If you really have 6 1st tier ECs, then you would most probably get admitted to most universities in the US (if your essays are good enough). If you're aiming for T20s, maybe don't submit your SAT score (a lot of colleges are test optional now). Your GPA looks fine.
I cannot really see a lot of schools rejecting you if you truly have 6 1st tier ECs.
It depends on if all the ecs are related. If you have 6 ecs not related to your major colleges will look at that differently then if you have 6 ecs related to your major.
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