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Re: hyroboost power
Hydroboost is nice for hot cams that have low manifold vacuum in some or all RPM ranges and for diesels that have zero manifold vacuum.
I prefer the hydroboost units because as long as the engine is running the boost is predictable from low RPM through extremely high RPM.
Hydroboost is more reliable than the other option... vacuum pumps from cars like the 1980's Celebrity.
This is one place where mores' law doesn't apply.
The factory 1 ton and diesel hydroboost systems will be just as reliable or better than an aftermarket system. And. There's no wondering if it will bolt up.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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