An overall guide for baseline jetting for NEW Weber carbs.

Tuning changes based on your altitude.  Note:  from sea level; to 2500 feet there will be very little change.

More great information on fuel pumps, pressure ignition and all related upgrades.  Must read!

You can't tune a carb or fuel injection system that has a vacuum leak - period.  Here's why.

Everything you need to know about jetting and tuning Weber carbs.  Note:  this is a work in progress.  Check back often for updates as we keep finding ways to optimize performance.

BMW 2002 Single Sidedraft kits are BACK and SHIPPING NOW.