I recently acquired a 1990 Olds 98 with less than 100k miles on it!! I had to replace the crank position sensor on it. It runs perfect. But, it is running rich as all heck.
It has new plugs, wires, and coils. Perfect compression . How can I lean it out? Or, should I?
Thanks in advance
I work on a racing setup with a 3800 gen 1 swap convert with a Gen 2 ECU using the MAP of the gen 2. I use a vacuum hose and hooked up my MAP to it instead of drilling a hole in my actual intake manifold.
I use a high flow Fuel Pump ... I already use this one for a GM L67 5.3,