When your turned fuel screw so much you cant any more longer drop idle-revs from screw,
your either making unbeliavable amount of black smoke whole time ( and blowing head-gasket with
exessive heat ), or your pump is build wrong. When i had fuel screw turned uo so much i couldnt any more
drop revs from screw, it was pulling black smoke almost right away when i pulled gas pedal.
With original distributor head.
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