Tunnel ram carb tuning

Quick Fuel SL-450-VSTRF and SL-450-VS TRR. vac secondaries. Different front and rear carbs. Jetted 1 number diff on the primary side of the rear electric choke carb. They have all the bleeds inside and outside replaceable. As well as pvcr. And I haven't given up on my 600s. I will drill and tap everything and that includes putting a restri ction in the transfer slot passage.