89 Fox 427
Slower than promised
- Joined
- Jan 22, 2021
- Messages
- 15,267
- Reaction score
- 30,665
- Points
- 153
Get yourself an AEM or similar wideband and put one in your car. Hell, I have one in my everyday Buick, love them! You will get to see exactly what is happening. Most likely a lean spot, but you never know until you actually know. I felt my Buick laying-over at full throttle after a few seconds, found the thing was going down to 9.2 A/F. Those dumb fucks send it way rich as a catalytic convertor saver. Would never have known what was happening without the wideband. I was able to tune that out.
I have two gauges. Each collector seems rich at the moment.










