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**frdnut** · 05-09-2008, 09:49 AM

Quote:

Originally Posted by Thordane65

I had a buddy make the following changes and he gained 3 tenths in the 1/4... NO OTHER CHANGES.
His car is comparible to yours... a 1967 barracuda with a 400 running 11.7 to 11.4 with the change.
...From a carter mechanical like yours with stock 3/8th line to a Mallory 140 and -8an line.

I am a big believer in making sure you have enough fuel... I personally dont think the mechanicals can keep up... but I know there are others who think they do.

Did you have the tank in or out to weld that sump in? And what did you do with your sending unit???
Looks great... I'm very interested!!!
Thanks

Definetly need the tank out and all the gas fumes removed before doing any welding..Most people simply spend the money and buy a new tank to avoid the hassle..Since mine was in good shape and I had the whole winter to let it air out I reused mine and rinsed it with water before welding....My original sending unit is still in place and is unaffected by the sump..I could reuse it for a return line if I needed to...I originally bought a Competition Engineering sump but it was too big to fit the mustang tank so I had one made by a buddy instead...Since then I have discovered a better looking setup that moves the sump a little further rear ward so it should pickup even more fuel under launch..Follow this link...
Cougar fuel system installed



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