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sb indy intake milling plenum #1864681
07/05/15 10:59 PM
07/05/15 10:59 PM
Joined: Jun 2005
Posts: 301
central Pa.
7
71Pan Offline OP
enthusiast
71Pan  Offline OP
enthusiast
7

Joined: Jun 2005
Posts: 301
central Pa.
71 Duster spool mounts 416 360-1 heads. I wanna keep a flat hood on the car. looks like I have to mill about an inch off of indy intake to fit. Can I do this? how much will this hurt performance. Motor is 12.25 heads ported 5500 coan 8 vert 4.1 28 tall tire 3250lb

Re: sb indy intake milling plenum [Re: 71Pan] #1864703
07/05/15 11:07 PM
07/05/15 11:07 PM
Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
sgcuda Offline
master
sgcuda  Offline
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Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
Is the carb against the hood or the air cleaner. If the air cleaner hits, you can try a dropped base to lower the air cleaner height.


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Re: sb indy intake milling plenum [Re: sgcuda] #1864761
07/05/15 11:51 PM
07/05/15 11:51 PM
Joined: Jul 2013
Posts: 1,272
Northern Calyfornua
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Sxrxrnr Offline
pro stock
Sxrxrnr  Offline
pro stock
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Joined: Jul 2013
Posts: 1,272
Northern Calyfornua
Originally Posted By sgcuda
Is the carb against the hood or the air cleaner. If the air cleaner hits, you can try a dropped base to lower the air cleaner height.


Agree!

My 71 LT 1 equipped Corvette with 780 Holley comes factory stock with such an air cleaner base. After market type air cleaners will not clear the hood.

Re: sb indy intake milling plenum [Re: 71Pan] #1864782
07/06/15 12:12 AM
07/06/15 12:12 AM
Joined: Jan 2003
Posts: 11,725
Portage,michigan
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B3422W5 Offline
I Live Here
B3422W5  Offline
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Joined: Jan 2003
Posts: 11,725
Portage,michigan
Inch off is fine.
Indy even notes that on its site.


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17









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