Joe71topless
Thread Starter
Cruising
Joined: Dec 2009
Posts: 12
Likes: 0
Joe71topless
I have a 71 vette 350 auto had engine rebuilt machine shop in Sayreville nj. This was done in 07 .car shook the rebuilder said it was carb .i had carb rebuilt .still ran crappy.machine shop still said it was carb .i took carb back 2 more times.no good.car sat in garage .finnaly did compression test.valves were bad had second valve job done.new over size valves and new springs put heads on. Started car ran same.bought new carb from summit racing.put it on it ran same .put new wires cap roter .points have protronics.still ran same.very hard to keep running.and engine smells like gas Carbon when I start it in garage any body have an idea.thanks joe.vaccume is between 8 and 12
Last edited by joe71topless; Mar 14, 2015 at 10:47 AM. Reason: More info.
Race Director
Joined: May 2006
Posts: 18,734
Likes: 2,582
did you do a compression test after reinstalling the heads?
what carburetor did you buy from Summit?
what is your initial timing set for? what is your total mechanical advance set for?
did you check for a vacuum leak around intake manifold to head and carburetor to head?
what camshaft do you have?
what carburetor did you buy from Summit?
what is your initial timing set for? what is your total mechanical advance set for?
did you check for a vacuum leak around intake manifold to head and carburetor to head?
what camshaft do you have?
Racer
Joined: Jan 2014
Posts: 407
Likes: 14
From: Mulberry Florida
I have a 71 vette 350 auto had engine rebuilt machine shop in Sayreville nj. This was done in 07 .car shook the rebuilder said it was carb .i had carb rebuilt .still ran crappy.machine shop still said it was carb .i took carb back 2 more times.no good.car sat in garage .finnaly did compression test.valves were bad had second valve job done.new over size valves and new springs put heads on. Started car ran same.bought new carb from summit racing.put it on it ran same .put new wires cap roter .points have protronics.still ran same.very hard to keep running.and engine smells like gas Carbon when I start it in garage any body have an idea.thenks joe
I am far from being an expert, but from all the work you have done and nothing has helped. I was wondering if the builder got the cam timing way off? Hope someone can help you with the problem.
Larry
Thread Starter
Cruising
Joined: Dec 2009
Posts: 12
Likes: 0
did you do a compression test after reinstalling the heads?
what carburetor did you buy from Summit?
what is your initial timing set for? what is your total mechanical advance set for?
did you check for a vacuum leak around intake manifold to head and carburetor to head?
what camshaft do you have?
what carburetor did you buy from Summit?
what is your initial timing set for? what is your total mechanical advance set for?
did you check for a vacuum leak around intake manifold to head and carburetor to head?
what camshaft do you have?
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Joined: Dec 2009
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Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
the timing was set for 4 degrees befor top dead center.but wants to run way edvanced
I bought a jet carb quadrajet 35001 new