1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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Apr 8, 2007 | 07:08 PM

#1

1991redneckf150

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What kind of gains can i expect from full length flowtech headers whith 2 1/2 inch collectors and true dual glass pack exaust on my 91 f150 with a 302

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Apr 8, 2007 | 09:37 PM

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phil6608

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From: Stanton DE

About 25 or 30 HP I think.

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Apr 9, 2007 | 08:48 AM

#3

Conanski

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From: Ottawa, Ontario

Quote:

Originally Posted by 1991redneckf150

What kind of gains can i expect from full length flowtech headers whith 2 1/2 inch collectors and true dual glass pack exaust on my 91 f150 with a 302

Going from a completely stock exhaust it'll be stronger from idle and up through the rpms, but the top end gains are not spectacular because the cam really holds this motor back.

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