Quote: Wow lots of activity here over the weekend! I ran the car on Sunday, intake vacuum was 8-9 inches of vacuum at 700 rpm low idle. I moved the mixture screws out an additional 1/2 turn (now 3 turns out), and switched the vacuum advance to the full vacuum fitting, instead of the ported fitting, and the car seemed to run slightly better, but not much. I've been reading the Edelbrock manual and looking for direction there as well, lots of info and combo's for tuning, but no mention (That I found) on off-idle changes.
I would put it back to the ported position or you'll have to much timing when it's not needed .
I disco the vac advance completely and lock it in full at 36-38* at 2400 and be done with it. If you want a "stockish" look use the 800 thunder.
Why throw away MPG?
hahaha MPG and a BB Mopar, I mean really...is it that important? if the car is tuned the vac advance isn't going to net you much better MPG if at all.
You must be really rich. If I took the vac advance off I would have easily went from 15 MPG to 12 or less real quick. In other words, 20% less, if not more.
I drove over 6000 miles in the RR this summer.
I'll let you do the math. Remember to take off the dollar or so that the hose cost to run the advance.
I'm really not sure why ANYBODY would say it isn't worth it to run on a street car. It is easy to adjust so ????You wouldn't tell somebody to leave the wrong jets in a carb, why is vac advance any different?
