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Jul 9, 2009 | 07:53 PM

Thrawn

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302

OK, so I have a 82 302 v8, and I am changing the carb to a 4brl 650 cfm eldelbrock, specter cold air intake, hooker headers and 3in exaust. does anyone have any idea of what kinda gas millage I might be getting when all the work is done. I am just looking for a ball park, also I have an '82 grand marquis, but I thought I would ask you guys cause from what I have seen you really know your stuff.

Thanks
~Thrawn

Jul 9, 2009 | 08:21 PM

forum155pl

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Joined: Sep 2007

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From: Spokane washington

13-16 below 10 if your in the secondaries alot

Jul 9, 2009 | 08:45 PM

Franklin2

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From: Virginia

Too many variables. What tranny-overdrive? What gear ratio in the rearend? What size tires? 4x4?

Jul 9, 2009 | 10:03 PM

86bigred

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Joined: Apr 2007

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From: patricia ab canada

if your running 3' duels that will hurt performance.won't scavenge the exhaust out of the cylinders.even a 3' single is to big,just a 302 engine.

Jul 11, 2009 | 02:31 AM

Kuskoal

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Joined: May 2007

Posts: 548

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From: Sparks, NV

i agree with the exhaust, way too big even for single. add an H-pipe on 2.5" duals and your in the right direction for making the headers scavenge better and get torque as a result

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