Quote: as far as butterflys go,all of mine are like that at WOT . not straight up and down vertical.
remeber the engine vac can/will pull it vertical on a WOT blast.
holding the carb in hand with the throttle in the WOT position,you should be able to move the 2ndary flys by hand to the vertical position against spring tension.
my q-jet open 7/8 of the way on 2ndary flys and works fine,it helps direct airflow thru the venturies pulling fuel up thru the tubes.
IMHO,I would not adjust that setting. weighted airdoor is going to regulate just how much air it pulls not the flys.
its a street engine not a full on race engine which would throw all those stock sout the window.
The secondaries DO swing open fully if I manually move them against the spring to that position from the position the primaries at WOT open them to, so your probably right in that the airflow at that speed would probably force them open all the way. So it sounds like I'm good to just leave them set where the rebuild instructions say it should be.
