250 stalls while setting timing
 

Hi all,

As I'm trying to set the timing and I'm turning the distributor and every thing is fine at about 1000 RPM & 10 BTDC.

I turn the distributor clockwise just a hair more, and the rpms drop and the RPM's stumble and stalls.

What am I doing wrong.

This is all on my 72 250 W114 M130.

Any help would be greatly appriciated.

Thanks