its a Holley 4bbl DP carb. I tryed cleaning the air filter with the K&N recharge kit, got the filter clean and looking new but it still dose it. this is my first carb. so not to keen on them could it be running to lean or maybe to much fuel its running of the Holley "Blue pump" outta a 10gal fuel cell but dont think thats the prob. cuse fuel pressure is at like 5 on idle maybe a carb. rebuild?