1990 c1500 Tachometer install

[someotherguy]

Wideband O2 very handy when it comes to custom tuning. Stock or near-stock no use for it. Your truck's ECM wants to know "rich" or "lean" from the stock O2 sensor; a wideband gives much more information - the actual air:fuel ratio.

Richard

 

[Logan R]

Ok, so maybe save a spot for thag someday? As I plan to make it a 383 some day, probly many years down the road

 

[Leeztruk]

Gonna throw this at you, as an option for your gauge selection. Check out Speedhut. You can select a size, then customize your gauges for Font, Pointer, and backlighting. When I installed my 2 1/16" tach, I was able to get a backlighting that pretty much matched my cluster lighting. Delivery was pretty quick too