02-18-2004, 11:22 PM | #1 |
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Join Date: Feb 2004
Location: vancouver, BC
Posts: 26
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carb install
I have a couple of questions regarding my carb install. It is off of an 82 305 and is a rochester Qjet. I can figure out all of the vacuum connections but can't fugure out what the large threaded input is at the back on the bottom. Can anyone show a pic of the back of a similar carb? Is there supposed to be a plug in this port? My second question is about the fuel pump. I have the line going to the carb but there is an extra output on this too. Does this connect to the back of my carb? The old engine was a 292 1 barrel so the fuel system is still set up for that truck.
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02-18-2004, 11:41 PM | #2 |
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Join Date: Oct 2001
Location: Yuma, AZ
Posts: 164
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The threaded at the bottom of the back is for the vaccum to the power brake booster. If you have manual brakes you will need to block it off. The extra line on the pump should be a return line. Not 100% sure about that though. Hope this helps. Good luck.
Oh yeah you didn't happen to get one of those 305 HO's with the big cam did you?
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'72 C-10 '99 Silverado '91 S-Dime |
02-19-2004, 03:51 AM | #3 |
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Join Date: Feb 2004
Location: vancouver, BC
Posts: 26
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don't know about the HO, what would the casting # be?
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