I am soooo relieved and pissed off!!!! I farted around with the Blazer a little while after I put the intake on the wife's car. I adjusted the rear float level and then went to the primary. A must have turned the nut the wrong way because fuel shot out of the vent tube as soon as I turned on the pump. So tried the other way and guess what? Fuel shot out of the vent tube again. I dropped the pressure down to 4psi and cleaned up my mess. I turned the damn key and it started right up. After spending $650 and missing a whole freaking weekend of racing fun!!!! I still think the other carb needs a new baseplate, because the fuel didn't come out of the vent tube, but instead went right into the engine. I'll change oil AGAIN and take it for a ride when I get a chance. I'm going to get a book on Holley tuning, I've never had a high performance double pumper before.