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Old 01-22-2013, 04:09 PM
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You'd best verify correct ignition timing and fireing before dyno testing.
Incorrect spark timng or scatter will smoke this blower motor in seconds.
You are supposed to start power testing @a low modest boost/blower drive ratio say 5psi and sneek up on the boost and power. Not immediatly @ 10psi boost.

a little white grease or petroleum jelly on the holley bowl/metering block gaskets keeps them from sticky/tearing for jets changes.

You need a vacuum boost gauge on the intake manifold and a vacuum gauge on the base of a carb.
and be able to watch both while testing. AT WOT under boost the carb vacuum gauge reading cannot exceed the power valve opening-closing point with non boost referencing or it will go lean and burn up under WOT.
Thats why the power valve "boost reference" mod needs to be done, first.

Last edited by F-BIRD'88; 01-22-2013 at 04:29 PM.
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