General Category > Quadrajet Carb Talk and Tips

Need advice on 7028213 carb

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Mr.Pontiac:
on a 68 corvette, 427 motor with 525 lift crower cam stock gears,base plate has .080 holes for air and fuel metering, should i go to at least .098?? No idle circuit working at all no visible improvmant with idle screws at all. Idle speed screw adj. all the way in until binding spring, car idling at 850 rpm.Secondly, should i open pull over enrich. tubes to .036??Lastly to improve or get some adj. should i open up upper air bleeds to .068? Needle and seat .101 going to open up to .135 to .140 to get some fuel into the carb. ok??? rbudney@comcast.net Secondary rods are AN BIG!!HELP!!

Cliff Ruggles:
What are the rest of the cam specs?

What is the static compression ratio?

What are the sizes of all the items listed in the high performance chapter?

Lower idle airbleed:
Upper idle airbleed (airhorn or main body):
Idle tube:
Idle down channel:
Idle bypass air:
Lower main airbleed:
Upper main airbleeds:
Main jets:
Primary metering rods (number and letter):

Mr.Pontiac:
Cliff,Lower air bleed .063
one jet .072 one .073
46B METERING RODS
SECONDARY HANGER k AN RODS
Idle tubes removed .038
secondary tube restict. .028
Main air bleed, air horn .046
air bleed body .046
needle seat .101
Not my car going on specs i saw 525 lift on Crower cam  hyrdraulic10.5 compression this is just a bare frame off 68 vette restored

Mr.Pontiac:
Base plate , air and fuel adj. screws  holes are only .080 should i open them up to at least .100

Mr.Pontiac:
Shame , got no more replys on the carb. here????

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