yeah I have a p28 manual running it. Ive got 80psi on my fuel pressure gauge and the adjustable reg that was on it wouldnt change it and ive tried oem regulators to lower it. it idles fine but if i give any throttle it boggs so after troubleshooting for weeks and triple checking vacuum lines this has to be the issue. i have no idea what would cause it. Its not throwing any codes.