Join Date: Oct 2003
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Re: big red is running like @#%^
Holley should have a leaver that will adapt your linkage.
Check thier web site for your application.
As for the poor performance, I'm thinking you have a vacuum leak. Partialy cover the the primary air horn with your hand at idle, if the RPM's go up you have a Vac leak. You can use some spray carb/brake clean to find out where. At idle spray along the mani/head head seam, also under the carb.
Holly carbs norm run rich so you prob have a big leak.
Couple of thing to check, 1 tighten both fuel bowls, 2 cheack the float level, both bowls.
Also make sure your timing is between 4 and 10 degrees advanced.