The procedure should be outlined in your shop manual. If you haven't purchased one that should be your next purchase. The Filling Station (ad at the top of the page) sells re-prints for $20 plus shipping. The best money you'll ever spend on your car. My 38 manual is getting dog eared.

Hi 29Red4

Tiny has given you great advice, and I would advise you to follow it.

Also, reprints of copies of the Chevrolet Service News used to be available, and I would advise getting them for at least 1929, '30 and '31.

In the mean time...

The pedal stop is used to adjust the clearance between the clutch pedal arm and the floor board to 1/4 to 1/2 inch with the clutch pedal right up against the stop.

The brakes will need to be readjusted after adjusting the stop.

Also, the linkage between the clutch fork and the clutch pedal should be adjusted to get 1 inch of free travel.

I'm attaching a scan of the pertinent information from the June 1929 Service News to get you going.

Hope that helps.

@ole-olson 

That is exactly what I needed. I printed out the page you scanned and will save it of course. I have the shop manual but if that info about the stop is in there I missed it.

Thanks to both of you for your replies