I have a Holley 885 Carb with a speed governor on a 337 flathead. The governor has vacume lines that attach to the distributor. The governor is kicking in about 900-1200 rpm before I reach red line. Anyone know how to adjust the speed governor? Is the adjustment in the base of the distributor?

John
NNY

 

Yes it is, on some its the square plug with a vac line take off the line unscrew the
plug and you have to turn the motor over until the adjuster comes into view. I
think its 3/8. Turn clockwise to increase speed, I wouldnt go past 3000 rpms. I'll
tell you it will be a little boring because you will have to do this many times to get
it right, just turn it 1/2 at a time. This is a two person job, one watching for the
nut to come up and the other person turning the motor over by the fan.
good luck on your 337. sam