I'm not 100% clear on the question but you have to have data from the upstream o2 sensor before the cat and from the downstream sensor after the cat. Those 2 readings tell the computer in your vehicle whether to richen or lean your air fuel ratio.
383 stroker
I decided on a stroker kit from Skip White performance. Had everything to do the job right, forged pistons, internally balanced crank, flexplate etc. and the price was right.
Tuning?
So what did you do to "max" out the fuel?
---------- Post added at 03:16 PM ---------- Previous post was at 03:15 PM ----------
I probably should have used this to ask the question: What specifically did you do to max out the fuel system?
383 stroker
I am also building a 383 stroker for my '97 Tahoe. The block is going to the machine shop today. Has anybody ever done this before? I'm having some last minute concerns. I'm trying to keep it as stock as possible. Do I need a different injector or t-body? Different mapping in the...
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