quadrajet 455ho

[ss3011]

Originally Posted by gearhead63

when on the 2 step afr is 18-19 but afterreleasing the 2 step afr goes from 10.5-12 just before shifting to second gear. poe system blockt. best 60 foot 1.39 best et 10.69 in e/sa should change to 69 pri jet for the next race and but a gopro camera under the hood over the carburator.

You may not be too far off , your et and 60 ft is pretty darn good . Tweeking the primary jets will let you see what the combo wants . Also , my 455 HO wants around 40 degs of timing , what are you running ?