Hot Rod - - Are Carbs Still King? -

To fin­ish off the test­ing on car­bu­reted in­takes for the LS3, we ran an Edel­brock Su­per Vic­tor equipped with a 4500 (Dom­i­na­tor) flange with two dif­fer­ent car­bu­re­tors. For this test, we in­stalled the same Hol­ley 950 Ul­tra XP car­bu­re­tor used on all the pre­vi­ous in­takes, as it also fea­tured the Dom­i­na­tor bolt pat­tern. The idea was to find out if the in­take re­sponded to the in­creased air­flow of­fered by the larger throt­tle open­ing. Equipped with the Hol­ley 950 Ul­tra XP car­bu­re­tor, the Su­per Vic­tor pro­duced 556 hp at 6,900 rpm and 557 lb-ft of torque at 5,300 rpm. De­spite the big-boy carb flange, torque pro­duc­tion down at 4,000 rpm was a re­spectable 489 lb-ft.

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