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69 Carb/Drop Base Issue

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Old May 3, 2008 | 06:22 PM
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Default 69 Carb/Drop Base Issue

Trying to get my 69 inspected & on the road. Had trouble with the original carb so I installed a 1901 Edelbrock - basically a Quadrajet knock off. The car runs fine until I put the base, filter & lid on. Seems the top of the accelerator linkage jamb WOT on the stock drop base. I thought about getting the Dremel out bit I don't want to "BUBBA" the new carb.

Any suggestions?

John
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Old May 3, 2008 | 08:25 PM
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ran a 1901 on my 70 for a bit. Had no issues with the air cleaner. It is a direct fit albiet a tuned down version. Using any spacers?
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Old May 3, 2008 | 08:29 PM
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I have a Demon carb with a spacer and Edelbrock intake. I had to install a drop base in order to get the hood to close. I had the same issues as you, and I Bubba'd the drop base until I can find an L88 hood.
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Old May 3, 2008 | 09:55 PM
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Originally Posted by outrunm
I have a Demon carb with a spacer and Edelbrock intake. I had to install a drop base in order to get the hood to close. I had the same issues as you, and I Bubba'd the drop base until I can find an L88 hood.
This is the stock base & I just powder coated it. I thought about getting the ball peen out but I try to keep Bubba locked away!

Also thought about bending the bracket a tad! Hate doing "STUFF" like that.

Guess it is time to send the original to Lars for a rebuild if he is back to work. That is the best solution.
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Old May 3, 2008 | 10:04 PM
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Contact the Edelbrock techs. I believe they carry different linkages to take care of problems like that. They should be able to give you the appropriate part numbers.
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Old May 3, 2008 | 10:09 PM
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Originally Posted by Roughrider
Contact the Edelbrock techs. I believe they carry different linkages to take care of problems like that. They should be able to give you the appropriate part numbers.
Thanks - didn't even think about that! That will be on the top of my To Do list on Monday!
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Old May 3, 2008 | 10:53 PM
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IMHO, it should be OK with the stock drop base. Do you have a thick carb airhorn to base gasket? It may require a thicker gasket for the base to clear the linkage properly. If you can't find a thick gasket you may want to try doubling up two thinner ones. I wouldn't modify anything until I tried a thicker gasket.
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Old May 3, 2008 | 11:30 PM
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Originally Posted by BB68Vett
IMHO, it should be OK with the stock drop base. Do you have a thick carb airhorn to base gasket? It may require a thicker gasket for the base to clear the linkage properly. If you can't find a thick gasket you may want to try doubling up two thinner ones. I wouldn't modify anything until I tried a thicker gasket.
BB68VETT - I have the 3 typical thin gaskets on the 69 carb (got them from Lars). I honestly don't see where the base gasket will have an impact on the linkage/air cleaner base. Maybe a thicker carb to air cleaner base gasket but then I might have to deal with hood clearance issues. I'll take a closer look Monday - the car is locked in a friend shop so I have no access.

Thanks,

John
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Old May 3, 2008 | 11:37 PM
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Originally Posted by vetteman1978
BB68VETT - I have the 3 typical thin gaskets on the 69 carb (got them from Lars). I honestly don't see where the base gasket will have an impact on the linkage/air cleaner base. Maybe a thicker carb to air cleaner base gasket but then I might have to deal with hood clearance issues. I'll take a closer look Monday - the car is locked in a friend shop so I have no access.

Thanks,

John
If you only have the 2 composite and the SS shim, you shouldn't have a linkage issue.

I have a pic somewhere of the linkage side of a 1901. I'll try to dig it up along with a pic of an original Q-jet to compare
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Old May 3, 2008 | 11:52 PM
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Vetteman, sorry I wasn't more specific in my reply. When I said "base", I did mean the air cleaner base. Yes, I would make sure there is a thick gasket between the air cleaner base and the carb. With a stock drop base aircleaner you will be fine. I replaced my deep drop stock base with a more universal type because of airflow issues and my hood still closes. Adding another thin gasket or replacing with a thick one you should still be OK. Of course, you should absolutely check hood clearance carefully before slamming the hood down.

Let us know how it goes.
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Old May 3, 2008 | 11:58 PM
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heres a 207 from my 70. Do you have the correct throttle cable bracket? which hole is your cable stud in?

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Old May 4, 2008 | 12:39 AM
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Originally Posted by BB68Vett
Vetteman, sorry I wasn't more specific in my reply. When I said "base", I did mean the air cleaner base. Yes, I would make sure there is a thick gasket between the air cleaner base and the carb. With a stock drop base aircleaner you will be fine. I replaced my deep drop stock base with a more universal type because of airflow issues and my hood still closes. Adding another thin gasket or replacing with a thick one you should still be OK. Of course, you should absolutely check hood clearance carefully before slamming the hood down.

Let us know how it goes.

That makes better sense! I know it's after midnight here on the east coast & it has been a long day (out early helping a friend get his 78 PC fired up). A thicker gasket on top of the carb might just get me the clearance I need.

Good point of the Hood - After all teh years this car has been off the road then ram a "breather" in the middle of the hood! YIKES!
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Old May 4, 2008 | 12:44 AM
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Originally Posted by dennis
heres a 207 from my 70. Do you have the correct throttle cable bracket? which hole is your cable stud in?

Dennis, the Edelbrock has the same exact linkage as my 207. My buddy (shop owner) & I measured the bracket, distance from the base to the top of the bracket. Couldn't find any difference.

My cable stud is on the top left hole. Any other location & I don't get full throttle.

Thanks for all the replies.
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