So they only disconnected the vacuum advance. These guys are old school hot rod tuners, by no means 2F experts. But he drove it multiple times and I trust their expertise more than mine.
The fouled O2's were not a timing issue, the Sniper was dumping way too much fuel. That was solved by...
Centrifugal force of the spinning distributor, it does it on it's own based on how fast it's spinning.
Im no engineer, so here's what AI says:
A mechanical (or centrifugal) advance distributor uses internal spring-loaded weights and centrifugal force to automatically advance ignition timing as...
Straight from their website:
"The mechanical advance assembly is a true Performance Distributors specialty. We use a high-performance weight and spring assembly engineered for super smooth operation. The advance assembly is tuned using a Sun distributor machine to ensure a precise timing curve...
In case anyone finds this thread with a similar issue, the extender didnt work. I was still burning up O2's and getting pretty frustrated. I found a local Fuel Injection Specialist that works with Snipers and took it to them. They were able to confirm no leaks on the intake or exhaust and they...
TLDR: Vote for BFG's
I have flip flopped on tires a couple times, but come back to BFG and have decades experience running all terrains from the original KO's to a new set of KO3's on my Tundra. For the 40 I prefer the All Terrains with the white letters out for a classic look. I am running the...
I did their headliner a couple years ago as a DIY project while i had the top off. The corners are not treated and unless you know what you are doing, the corners are a struggle amd mine absolutely looks like an amateur did it.
Bosch 17025
How long did the previous O2 sensor last?
May want to check if you have any exhaust or intake leaks. Even tiny ones can screw this system up and make your system eat O2’s.
Also mine likes the factory air cleaner. Had the little donut style that sits on top and it didn’t like it...
One other note, as you are chasing 1 or 2 MPG's consider how much fuel you can buy for the mods you are making to pick up those couple MPG's.
Here's the math to back that up: At 150 miles per week at $4/gal fuel if you go from 14 to 16 mpg you save $278/year. It's going to take years at that...
The thing is shaped like a brick and uses 50+ year old tech. Likely barking up the wrong tree.
Swapping to FJ60 (3.70:1 ratio) thirds would drop your rpm and make for a better road driver.