Tunnel Ram Tune

Do you feel that lean spot while accelerating through that point under load(driving)? Which leads me to my next question were all those readings you took under load?

what I’m getting at is while accelerating its good but when get to cruising it goes lean. Does that sound right?

consider this, it may be your intake plenum or lack of one as is the case with the Weiand high ram. Back in the day all pro stock cars ran them, they are designed for wot and acceleration. You may want to take a look at an edelbrock street ram. May solve your problem. And I know it’s not my ****, but your not doing your engine any good will double pumper carbs. Your washing oil off your cylinder walls and wearing your engine out.