4A-GE MK1 Engine 88 Engine Problem

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So I just bought my 88 (N/A) a couple weeks ago from the original owner.. Everything looked good and ran great. Drove it 500+ miles home without any issues, and another 500 miles since then (gotta love traveling for Thanksgiving).. Anyway, on my trip back home today, she ran fine for about 90 miles, but suddenly lost all power above ~2800 rpm and at any time at full throttle. I could get past 2800 if I was just barely on the throttle, but anything more and I would start losing speed and the