Lean at Idle and cruising, rich at WOT

[2GEEZEY]

As the title states, im lean at idle( ---) or even 16, 17, 18 afrs.

when im cruising, im seeing 16 17 afrs, when in WOT its maxed out rich, 10, 11 afrs.

what could be the problem? i only have a walbro 255 re wired, and fuel labs afpr. could i adjust the afpr?

 

[gofer]

Sounds like a vacuum leak at idle (LEAN) which becomes a boost leak going WOT (RICH) doing a boost leak test will point you to the problem.

 

[regulator213]

I thought that 10 or 11:1 AFR was about what you wanted at WOT?

 

[2GEEZEY]

thanks gofer, i will do that, all my couplers are fine, im guessing my TB gasket or something on the intake manifold is leaking. btw, i get like 10 hg of vac. and its all jumpy, im pretty sure my timing skipped a tooth