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Re: Engine staggers when given throttle
Several causes. There's no magic bullet on this one so try the easiest first.
Check choke adjustment if it happens primarily when engine has not reached operating temp.
Make sure vacuum advance is working by using mouth suction to see if it moves and has no leaks. Try changing it to manifold vacuum if you have it to ported vacuum.
Check vacuum with vacuum gauge and adjust idle air adjusting screws for max vacuum.
If you have HEI check timing and bump it up to 12 deg.
Check the throttle pump to make sure it squirts gas when throttle depressed by hand.
Other fuel related possiblities like clogged filters or restricted fuel flow.
Carb needing a good cleaning.
As a last resort do a search of "quadrajet stumble off idle" either on this site or on google and you should get some hits.
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68 GMC 250/3 speed Saginaw p/b p/s
69 Chevy 350/350 currently in pieces still lookin for a cab
06 Trailblazer
I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...
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