Wideband

I purchased a wideband digital set up from Glowshift on ebay a couple of years ago.. I had oxygen sensor bungs welded in to my exhaust, just behind the header collector.

System came with guage, digital controller with data logging output if you want to use it and all wiring with a bosch heated o2 sensor. cost about 200 bucks

best tuning aid I have ever used.. I can monitor by a/f ratio while driving and then once I have all the jets and springs and rods set up and get the mixtures where I want them, I remove the sensor so I don't wear it out unnecessarily.. and take the guage off the dash, and remove the entire system from the car.

I wired the system into my cars electrical system with a trailer 4 wire plug , so it can be reinstalled quickly whenever I want to check the tune.