I have a 440 that is running lean only on the passenger side. heats up headers to glowing red in minutes when she's running. thought it was maybe a vacuum leak but cant find it, running a holley 4 barrell. any ideas?

 

Jim -

At the risk of stating the obvious, did you adjust the A/F mixture screws on BOTH sides?

A gasket leak can do that, but that's typically one or two cylinders, not the entire bank.

Welcome aboard!

Archer

 

yes a buddy 0f mine showed me how to adjust both sides. he is the one that suggested a vacuum leak.