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Old 04-22-2009, 02:45 AM   #1
79gmcc15
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Unhappy carb w/o break bost line? Help!

so, I found a carb on criags list. went out there and it looked really, really good. best one Ive seen so far. so I take it home, take off my old carb and notice that the "new" carb does not have the hole to screw in my break line! so, will it run with out that hooked on? what will happen if the brake line isn't hooked up? I do have a Rochester carb *just like the "new" carb, just newer in age* that has the throttle plate that has the brake line but I don't think the bushings are good. is it possible to drill/tap in the "new" carb to make it work? or a way to hook up some other line to make the power brakes work? Thank y'all! Matt
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Old 04-22-2009, 02:54 AM   #2
Manbearpig
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Re: carb w/o break bost line? Help!

It will run fine without it hooked and you won't have power brakes.

You could probably swap your throttle body off your "older" carb to the one you bought and that will solve your problem


No need to drill anything
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Old 04-22-2009, 03:16 AM   #3
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Re: carb w/o break bost line? Help!

Just hook it up to the intake manifold somewhere. it'll work just as good. I wouldn't drill into your new carb, or you may end up with brand new junk. They do make spacers with the hole in it.
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Old 04-22-2009, 04:50 AM   #4
79gmcc15
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Re: carb w/o break bost line? Help!

wow very fast reply's guys, thanks! I will look into switching out the plates and looking for the spacer. the carb is from a early 70's. so I noticed it doesn't have as many vacuum ports on the plate. so I might have to cut out some of the non important stuff.
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Work In Progress 1979 GMC C1500 Trailering Special.
Getting the truck done, one piece at a time.

“You can tell a lot about a fellow’s character by his way of eating jellybeans.”Ronald Reagan

“I don’t know the key to success but I know the key to failure is trying to please everybody.” Bill Cosby
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Old 04-22-2009, 04:55 AM   #5
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Re: carb w/o break bost line? Help!

Just use your old plate


Save a buncha hassle
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