Hopefully that solves the problem. I had a 93 NA years ago that I chased electrical demons for 2 months on. Similar issue, but I had problems at idle, not at half/full throttle. Turns out it was the wiring harness to the MAF had a small tear and the copper was exposed under the electrical tape the previous owner had wrapped the wiring harness in. That was an expensive lesson to learn after replacing connector after connector.