nytrdr24
+1y
Thx for the info/pointer BJ....As I mentioned in the reply to Linn, the vac advance is pulling perhaps too well at idle, and when I pulled it off, the engine wanted to stall unless I bumped the throttle....I was doing a little more research in one of the weber books last night, and it showed vac diagrams for specific spots in the carb
cyl bores & mani....in effect, from what I know it should pull very little to no vac at idle (x), yet pull vac under acceleration to w/e point the throttle levels out (be it mid throttle for steady speed, or at wot) so if it pulls x amount of vac at idle, then during acceleration, it would be x+, then at w/e point the throttle levels out, be it mid throttle, or wot, the vac should return to the steady x....with that in mind, the spot where I've tapped the mani on the carb mounting flange, according to the book it will pull max vac at idle with the throttle closed, and loose vac as the throttle is opened.....I did this as the only other way I was told that vac could be referenced on the carbs was to drill & tap a spot on one of the carbs, which with brand new carbs, I wasn't too thrilled at doing....the book did show a spot on the carb bores right behind the aux venturi that with the throttle closed, pulled little vac, and as the throttle opened, it would increase.....so I may have to figure a way to reference vac from that point....still not enthused about drilling into the carb.....so the R&D process continues.....