I bought a Cruiser to keep miles off my Cruiser
- Oct 6, 2014
At this stage, i would check the Catalytic Converter and make sure is not clogged up.
Vac gauge shows a slight vacuum at redline which indicates the exhaust is flowing fine. There is no downstream o2 sensor on the 93-94 so other than causing massive back pressure there's really no impact those could have. If there was massive backpressure the vac gauge would read 0 in at WOT redline and the engine would struggle up top, none of which is happening. What made you think of the cats?