2 Barrel Hei Guys - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Imacarguytoo · 12-13-2006, 11:41 PM

I have converted my 67 over to hei. The truck looks to have the factory intake and 2-barrel carb. Where can i hook up the vac advance hose? I am trying to get away from having to put my rpm and holley 600 on it due to wanting better gas mileage.

The carb from what i can see only has 1 port and its full vacuum. There is a threaded port on the back of the carb but thats for power brakes. And there is a port on the intake for the tranny. What should i do?

12-13-2006, 11:41 PM	#1
Imacarguytoo Registered User Join Date: Nov 2006 Location: Illinois Posts: 306	2 Barrel Hei Guys I have converted my 67 over to hei. The truck looks to have the factory intake and 2-barrel carb. Where can i hook up the vac advance hose? I am trying to get away from having to put my rpm and holley 600 on it due to wanting better gas mileage. The carb from what i can see only has 1 port and its full vacuum. There is a threaded port on the back of the carb but thats for power brakes. And there is a port on the intake for the tranny. What should i do?



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