Tuning Weber 34ICT's, overrun?? Options

[justme]

First time carb guy, sorry all you FI fans. I finally got tired of NLA.

Got my Weber's on, fuel pump et...

Run well, responds well to throttle up & down the rpm range...

One issue. When shifting through the gears the rev's stay up, not quite racing but feels like it's doing an overrun... Can't be good for mileage.

The motor is a stock 1.7 w/ a 009 dizzy

Cable and linkage move freely and in sync

I know the advance on these 009's suck, could it be the dizzy or does it sound like a carb adjustment?

I can't wait to get this straight as I'm quite happy with the whole project, love looking at the top of the motor! (IMG:style_emoticons/default/smile.gif)

Thanks (IMG:style_emoticons/default/beerchug.gif)

[r_towle]

Three things come to mind...well four...

Carb linkage is binding.
the carbs are not on the same plane, so the drop links are also not on the same plane. you may need standoffs to eliminate the binding.

Throttle return spring missing, or to weak.
You need a main throttle return spring at the link piece that attaches to the throttle cable. You cant rely on just the carb springs to move the heavy linkage back...especially if its binding.

Timing is not right...
Check timing and dwell.

Dizzy advance plates are dirty.
Remove, clean and re-grease,....cost 0.05 and does wonders for a car that wont come back to idle quickly... (even if its new...)

rich