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Leaky Intake manifold??
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<blockquote data-quote="69ST" data-source="post: 183171" data-attributes="member: 5"><p>Verify the point gap, it takes no time or real effort. Also, these ignitions can rival the spark output of CDI. So, if you have a nice, strong, spark...especially if there's an audible "snap" to it, the condenser should be fine.</p><p></p><p>Main jet sizing varied from #58 up to #65 with the model & year of the carb. Understand that the main jet is but one factor controlling the amount of fuel entering the intake stream. It's only important to understand that your carb needs the same size main jet...and not try to use, say #58 or #64, for example(s). There is one wrench in the monkeyworks...pump gas isn't the same as if was in 1970. Thus, the jet needle height may have to be altered to compensate; in some instances, it is necessary to upsize the main jet. Don't let's go there, just yet. Until we've sorted through the vacuum leak & verified the emulsion tube as being completely unobstructed, that will only add to your confusion.</p><p></p><p>First thing I'd do is find a twist tie, then strip the coating off if it, to create a makeshift jet file. Then run that through every single wall orifice in the emulsion tube. FYI, the emulsion tube is also the main jet holder. It will have to be unscrewed from the carb body, to access those tiny holes.</p></blockquote><p></p>
[QUOTE="69ST, post: 183171, member: 5"] Verify the point gap, it takes no time or real effort. Also, these ignitions can rival the spark output of CDI. So, if you have a nice, strong, spark...especially if there's an audible "snap" to it, the condenser should be fine. Main jet sizing varied from #58 up to #65 with the model & year of the carb. Understand that the main jet is but one factor controlling the amount of fuel entering the intake stream. It's only important to understand that your carb needs the same size main jet...and not try to use, say #58 or #64, for example(s). There is one wrench in the monkeyworks...pump gas isn't the same as if was in 1970. Thus, the jet needle height may have to be altered to compensate; in some instances, it is necessary to upsize the main jet. Don't let's go there, just yet. Until we've sorted through the vacuum leak & verified the emulsion tube as being completely unobstructed, that will only add to your confusion. First thing I'd do is find a twist tie, then strip the coating off if it, to create a makeshift jet file. Then run that through every single wall orifice in the emulsion tube. FYI, the emulsion tube is also the main jet holder. It will have to be unscrewed from the carb body, to access those tiny holes. [/QUOTE]
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Leaky Intake manifold??
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