aFBatw!

alright i already searched so dont be mean. i just got a new holley 465 for my 85 12a stockport and now it wont idle, the original primary jet size was #57 and it would hold an idle aftersome fidlin but when i changed the jet size to #50 like the rb 465 it wont idle. when i throttle it a bit it will pick up to about 3k and die off does this mean its too lean. oh yeah and the header is glowing. #50 doesnt seem too small is it? and if this helps its about 35 degrees outside.

OneRotor

iTrader: (3)

did you buy it from Racing Beat?

Jeff20B

iTrader: (13)

Glowing header is usually one of two things. Fuel or timing. Too rich or retarded ignition/no leading ignition. Check that your leading timing is working. Then check that timing is correct. Then check your air/fuel ratio.

jimbowatson2002

have u messed with the air/ful mixture, bc if u change jet size then ur gonna have to adjust it