it sounds like the squirters are not working. and when you roll into the throttle it's okay, but when you stab it goes lean. pull the air cleaner and start the car and accelerate the throttle and see if the squirters are working, if not an easy fix is to order an accelerator pump assembly from Cliff Carb.
Jim
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Jim Moshier
1971 Grand Prix 462ci SD Performance 6x heads
1962 Catalina 389
1968 Firebird 400-455 I haven't decided
"If we ever forget that we're one nation under GOD, then we will be a nation gone under." - Ronald Reagan
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