I did the vacuum removal about a year ago and have enjoyed better performance; bare bones, Stage 4(?), removing everything including the choke and plate. The only issue to work out was rigging a manual choke since the car tends to stall the first few minutes of driving.
I fabricated a plate and rod (lost the original) and routed a choke lever in the cabin. I tested it last night and today. When closed, the car would not run. Too rich. With the plate 3/4 open, the car runs great and doesn't stall, like a choke should do. This is puzzling b/c the only thing there to restrict air is the 3/4 opened plate, except for a screw hole where I mounted the cable restraint (wouldn't think it would be open to air though?) With the plate open, it's about 15 degrees short of perpendicular over the flat primary venturi surface.
This is all great, except that since it seems fully open, I'm gonna be running rich. I can adjust the plate so it's 90 degrees and only closes w/ a 15 degree opening or so, but you'd think it would need to be fully closed to work, right? The only other thing I can figure is that screw hole actually goes into the carb and putting a screw there blocked more air, causing me to run rich.
Anyone have similar exeriences w/ a manual choke?
One thing I did differently than the stock choke plate was mount it so the larger side of the flap is on TOP of the carb, rather than hanging down just over the venturi and gas injection nozzle. I wouldn't think that makes a big difference but maybe it does.
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