When they dynod my 70 455 the #'s were 491 hp at 5200 rpms with a iron intake and a 7040267 carb gone over by cliff. They started the dynos with the shop holley 850 DP. Both carbs had good AF ratios. Only difference was they had to run a adapter to run the holley. The Qjet made about 3-4 HP more than the holley.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007
(cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD
1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.64 @ 87.3 mph on slippery street tires.Bad 2.25 60ft.Owned since 86'
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