Help: Tail pipe hiccups while idle with A/C off

[xXx27]

Hi All,

Need expert advise mga sir. My ae92 just had engine overhauled and replaced carb (replacement only). Problem is, during idle grabe ang sinok sa pipe, i had the fuel filter, fuel pump, air filter replaced. Plugs are new, distributor cap, high tension wires. The odd thing nawawala ang sinok pag on ng A/C. I can tell na meron pa rin but its completely tolerable unlike pag naka idle. Pls help. Car is running stock 4af engine.

[coiter]

malamang may air leak. check all the air hoses for cracks. since kapapalit lang ng carb, baka rin di nabalik lahat ng hose sa tamang lugar. see if there are any 'nipples' sa carb or intake manifold na walang hose.
mukha lang nababawasan yung sinok pag naka A/C kasi tumataas ang idle. HTH