Double pumpers are pig rich on the transitions and at cruise. They are jetted for the track. The simplest thing to try is to drop down 5 jets on the primary and open the PVCRs several thousands to compensate. You need a wide band to re-balance the WOT.

Shoot for mid 14s for the cruise, but you will need the enrichment circuit to come in sooner with that leaner and cleaner cruise. Probably an 8.5 to 10.5 power valve. You can disconnect the secondary linkage so that you can concentrate on the primary mixes. The secondary WOT is usually pretty close.


Master, again and still