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#1
04-21-2007, 01:06 PM
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vacuum
I hooked a gauge to manifold vacuum at the carb..............reading 14" Hg at idle.
Does this sound ok? Runs fine.
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1971 GTO: Quezal Gold, non-R/A 455HO, TH400, 3.55 Safe-T-Track, 1 of 412. turns in 13.4@101 miles per, "Hey these 'ol GTO's haul ass"! |
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#2
04-21-2007, 03:15 PM
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thats a little low if your car doesnt have a large cam but still ok. Try adjusting timing and Air/Fuel mixture this might help to raise vacuume.
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#3
04-21-2007, 04:30 PM
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This motor was rebuilt back in the '80's, and the guy apparently replaced the 068 cam with a bit hotter. Don't know why, the 068 had pretty long duration and good lift itself.
What number should I be looking for optimum on this 455HO? Thanks.
__________________
1971 GTO: Quezal Gold, non-R/A 455HO, TH400, 3.55 Safe-T-Track, 1 of 412. turns in 13.4@101 miles per, "Hey these 'ol GTO's haul ass"! |
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