OH wow! great tuning! My head hurts from trying to soak all the information in. I have the same weber book, pulled it off the shelf in my dads garage. It looks like it was printed in the 80's. I just read it through a couple times and took notes. I will be doing the same tuning on my truck when I get a chance. I bought my truck back in 2012. It had a 32/36 on it at the time as well as a header and a cam. Through out the years I swapped the header on it (torque rod bracket made a bad ding in it) put a Offy single plane intake on it and modified a "Ram Air Intake" to it. Of corse, having less wisdom, I never changed the jets. I thought "It runs ok..." and never made time to dig into it.... Then I burned a valve running freeway speed. Cruising along and felt a cylinder drop out. pulled over and the spark plug was no more... wish I had a picture of it, it was bad. My ignorance had caught up with me. I believe this is due to extreme LEAN mix at cruise.
It had
On Truck
Main- Prim-140 Sec- 150
Idle- 60
Sec Idle- 50
Pump- 50
AC- Prim- 170 Sec- 180
I ordered some more jets so in total ill have
All Jets Had including ordered
Main- 140,145,150,155
Primary Idle- 60, 65
Secondary Idle- 50, 55, 60
Pump- 50
Air Correction- 160, 170, 180
Im thinking after reading the book I really need to go up in main and down In AC. But before i mess around with the carb I think I need a new distributor as the vac advance no longer works at all. I was eyeing the DUI distributor from LCE to replace and upgrade the distributor.
Like I said I took some notes and dumbed it down for myself
1. Main jet are primarily responsible of fuel flow in middle range RPM
2. As RPM goes up A/C and E-tubes become more significant
3. At max throttle A/C has most effect on fuel flow
Would you guys agree?
OH! also the throttle bushings on mine seemed like the outer diameter was much too small to contact the Inner diameter if the carb bosses. I had ordered the bearings for it a few years back I just popped them in and they fit very well.
Here is my "Ram Air" Im sure Gnarls won't enjoy it but its the only air cleaner canister I found that I thought I could make work.
