Blow Through 408w - Massive Stumble

Originally Posted by rcodemach1

...... Both carbs that he tried lack jet extensions so ........

Might want to start there and see, cheap and quick adjustment to start.

Originally Posted by pinto306

Sounds just like you have a standard or natrually aspritaded carburetor. The blow off is working at idle and when you slap the throttle it goes lean and stumbles or shuts off.

You need a blow thru carb. especially built to blow thru applications. I would only purchase a CSU or C&S Specialties carb for blow thru... deffinately not a BG

Answer this question and problem solved......