On 9/30/2024 at 8:15 AM, carbking said:I personally believe it is a combination of the two.
That is Art and Science.
Would troubleshooting be the science part?
It took me a while to realize most of my symptoms were while idling. I could have it in PARK, get out, walk around, raise the hood and measure vacuum, check timing. This is on the carburetor's Idle Circuit. How complicated could that be?
Driving, I could not walk around and check the tailpipes for water, smell and raise the hood.
Except for fuel consumption, my Riviera drove fine.
If I had instrumented my Nailhead with a data logger, indications would be all good.
An aftermarket throttlebody FI would have an App displaying realtime data, trend data, like a data logger. Nice!
A 4BBL Carburetor has 3 circuits, Idle, Primary, Secondary.
Again, how complicated could an Idle circuit be? The original AFB was not my problem.