| [GMCnet] Anyone put an aluminum intake manifold on a 403 [message #311796] |
Tue, 03 January 2017 12:02  |
Advanced Concept Ener
Messages: 112
Registered: December 2014
Karma: 0
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Senior Member |
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In 1991 I put a an Edlebrock intake manifold and torquer cam, headers and 3" exhaust and Holly FI on my 78 Royale with 403. The difference was amazing. No more vapor lock, great throttle response. Had to build a 2-3" dog house. Installed a low profile scoop and remote 4" filter. The following year they offer O2 feedback that I promptly installed. Had original 3:08 gears. Got as good a 11 mpg on flat runs.
Jon Darcy ACES
North Jersey 76 stretch, flares, 4 bag, Alcoa's, bunkhouse,MAC Dash,Manny Trans, FiTech FI,Honda 6010
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| Re: [GMCnet] Anyone put an aluminum intake manifold on a 403 [message #311805 is a reply to message #311796] |
Tue, 03 January 2017 21:45  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Miguel Mendez of MGM GMC will tell you that he he get just as good milage
with our 3.70 on his and his customers 403 engines and also improves
performance.
Also Jim Hupy gets comparable milage and performance.
One need to look at the torque curve to see why the lower can give the
advantage and the increase in aerodynamic drag .
On Tue, Jan 3, 2017 at 10:02 AM, Advanced Concept Energy Solutions <
aces4nrg@gmail.com> wrote:
> In 1991 I put a an Edlebrock intake manifold and torquer cam, headers and
> 3" exhaust and Holly FI on my 78 Royale with 403. The difference was
> amazing. No more vapor lock, great throttle response. Had to build a 2-3"
> dog house. Installed a low profile scoop and remote 4" filter. The
> following year they offer O2 feedback that I promptly installed. Had
> original 3:08 gears. Got as good a 11 mpg on flat runs.
>
> Jon Darcy ACES
> North Jersey 76 stretch, flares, 4 bag, Alcoa's, bunkhouse,MAC Dash,Manny
> Trans, FiTech FI,Honda 6010
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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