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<p>[QUOTE=&quot;dcarr, post: 2384341, member: 4781&quot;]The 1988 Suburban has the original TBI (throttle body injection) system, which is sort of like a hybrid between a carburetor and modern (port) fuel injection systems.</p><p>It is more like fuel injection than carburetion, but the throttle body is like a big 2-bbl carburetor. So no 4-barrel on this one.</p><p><br /></p><p>All my other older cars do have a 4-barrel carburetor, and the secondaries are bigger than the primaries, which yields a good compromise of decent fuel economy when you have a light foot, but strong performance (at the expense of fuel economy) with a heavy foot.[/QUOTE]</p><p><br /></p>

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