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Old Jul 7, 2002 | 02:11 PM
  #1  
78 4X4 Thunder's Avatar
78 4X4 Thunder
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300-6 general

Anyone know how to tweak 300-6's to run better and be louder? I have a '78 F150 SB w/300-6 and 4.11's and 32x11.50 BF Goodriches.
 
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Old Jul 7, 2002 | 06:51 PM
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holyjohnson
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300-6 general

try these they will help a bunch.
http://www.inliners.org/

http://fordsix.com/

http://www.cliffordperformance.com/home.htm

goodluck
 
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Old Jul 7, 2002 | 09:05 PM
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Vampiro
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From: Canada
300-6 general

i have a 300 6. i literally kicked off the tail piep due to it breaking. it has a nice lower sound now. try glass [pacs and a dual exhaust. stright pipes, or just to annyo everyone remove the muffler completely
 
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Old Jul 7, 2002 | 11:48 PM
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300-6 general

If your '78 has the EGR installed, pull the vacuum line going to it and stuff a golf tee into and see what "tweaked" increase in performance you get. Check into the inline forum, there's a fella with a 240 with the same questions.
 
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Old Jul 9, 2002 | 02:02 AM
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trinogt
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From: Eustis FL
300-6 general

I almost bought a 78 with a beefed up 300. It had a 4V intake with 600 CFM carb, headers into dual exhaust, cam, roller rockers, and high compression pistons. I don't know the ratio, or the type of mufflers, but this thing sounded like a top fuel car at an idle! It was one of the best sounding engines I ever heard! There was so much compression that you could feel each pulse from the exhaust! It apparently had over 300 hp, and I believe it! Just wish I would have driven it! I have pics of the truck and motor if anyone wants.
Mark



https://www.ford-trucks.com/user_gallery/displaythumbnail.php?&photoid=5362&.jpg
Ford started it; Ford will finish it!

 
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Old Jul 9, 2002 | 03:33 PM
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300-6 general

 
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Old Jul 9, 2002 | 03:58 PM
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brown 4x4
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300-6 general

>I have pics of the truck and motor if anyone wants.
I'd love to see them. Sounds like quite the engine/truck.

--------------
[font color="green"]1995 F-150 Supercab XLT 4x4 302 M5OD 8' bed [/font]31x10.50's
[font color="green"]1986 F-150 4x4 300 I6 NP435 [/font]Warn hubs, DeeZee bed caps, '96 XLT bench seat, new paint job
 
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