removed fuel line to MPI and tuned out. Put OEM fuel pump back in to try and see if walbro525 might be having issues. .22 Gapped ikh27 sparkplugs. High misfires on cylinder #1,2,3. 24PSI, 91 octane. In the Youtube video, you can hear the the engine breaking up during the high RPM's. The file associated is 2020_1_3-15.9.53 (the last one).