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My first tri-power, first 427, and first Corvette…..
rear carb link is hitting the intake manifold restricting both carbs to less than 50% open. Seems all the key parts are correct. Need help on what to look for.
Carb numbers Intake manifold Carb base Butterfly limit from restriction Linkage/manifold restrictio
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
can you post some pics that arent close ups please. my 68 doesnt come close . I also run some spacers. A minimum of a 1/4" usually to help with heat issues.
can you post some pics that arent close ups please. my 68 doesnt come close . I also run some spacers. A minimum of a 1/4" usually to help with heat issues.
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
your carbs are beautiful by the way. Everything is very clean. Post pics of your entire car for us. If its as good as those carbs its got to be beautiful!!!
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
The original clips cross bar goes out the back on the rear and way out th e front on the front. They are odd shaped compared to the generic choices ones that are sold. you will have to hunt for them. I will look and see if I can find them,. I did once Hughs thread had a link I think as well
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
ps, you should consider a double throttle return spring one inside the other. If one breaks you have a back up. Its not original but it is safer. If you dont and you do have a runaway engine just shut it off...some folks panic. coast to the side and figure it out. I had a throttle cable hang up and its what I did
ps, you should consider a double throttle return spring one inside the other. If one breaks you have a back up. Its not original but it is safer. If you dont and you do have a runaway engine just shut it off...some folks panic. coast to the side and figure it out. I had a throttle cable hang up and its what I did
Never in a month of Wednesdays would i have found that. Too the clip off and very slightly bent the carb linkage away from the manifold and it clears. I will have to consider your double spring advice after the 50+ horsepower increase at full throttle. These carbs were rebuilt by PO maybe 10+ years ago and they must have selected those generic clips.
Your manifold must be a different number than mine, your carbs sit much higher.
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
I wouldnt have thought about it but it was an issue for hooper in the past, thats what reminded me when i was staring at your linkage.
Be carefull on those throttle arms. They arent swaged on the best and can get loose if they get abused too much. Good luck with your car. She looks awesome!!!
I logged on this morning and thought to myself 'I'll go thru my thread and find the right post'. Then you saved me the time - thanks Scott! This forum is great - sometimes it's the small things that can drive us crazy. Short drive for me! Best, Paul
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Hey dont laugh..I have fat finger old man lazy *** typing syndrome. The doctor says its perfectly normal for a man my age....LOL, you should see what comes out of my phone when I type with that little monster, i turned off auto complete because of the odd messages it would send but it wont auto correct now....if you see edits under my posts its always typing corrections...hahahhah
I got the clips yesterday and they ARE the solution. Thank you for the guidance….now all i need is the shoulder bolt that ties that linkage together, easy to over tighten ☹️
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Glad they worked for you...That center linkage bolt should be really loose...its only function is to close the butterflies if the vacuum fails. You dont want it to interfere with the vacuum trying to open them
I tried tightening my first original one and snapped it easily
Tri-power linkage interference
Best, Paul