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Old 09-20-2008, 02:52 PM
WARSGTO WARSGTO is offline
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Location: SPRINGHILL FL.
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Default vacuum leak

WHAT IS THE BEST METHOD TO CHECK FOR A VACUUM LEAK ON A 66 TRIPOWER. I NEED TO CHECK MANIFOLD AREAS . I THINKING CARBS ARE OK . I HAVE 15 AT CARB AND 7.5 AT MANIFOLD. THANKS

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Old 09-20-2008, 03:21 PM
GTOGreg's Avatar
GTOGreg GTOGreg is offline
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If you have a portable propane bottle you can turn it on to see if, when waved around areas that should be sealed, it makes the idle increase. If the idle does increase, that is where your leak is.

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1967 GTO
Tyrol Blue/Blk Cordova
400, TKO-600, 8.2 Posi w/3.55

400 + .020, decked to .005
SD Performance 240+CFM 670 heads
RARE HO/RA manifolds
RARE 2.5" Exhaust (18" Magnaflows)
SD "Stump Puller" HR cam (230/236, 112LSA, 107.5 ICL)
PRW stainless 1.52 roller rockers
Forged TRW slugs
SCAT H-Beam forged rods
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