More power, need help!
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New User
Joined: Sep 2017
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More power, need help!
I have a 1990 f150 with a 351w that has just over 300k on it and I'm wanting to get a little more power out of it to help tow and turn the 35x12.50 15lt tires, any suggestions? On a student budget so $1000-$2000.
Senior User
Joined: Oct 2004
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Better Breathing
I am assuming the engine is in good mechanical condition, and can support a little more HP and Torque. 300K is a lot of miles. The best way to get more power from a factory Ford is to improve it's breathing. For the budget you are talking about, you should be able to buy a decent set of aftermarket aluminum heads with bigger valves and smaller combustion chambers (if you do the work yourself). This, along with a set of headers will make your Ford breath much better, and raise the compression, if you get smaller combustion chambers. I am sure there are other options, but this is where I would start.
FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
What axle ratio does it have? Anything less than 4.10 is fighting an up hill battle you won't win. The next best upgrade after gears is a cam swap, new heads are almost a complete waste of money until the factory cam is changed... it really is that bad.
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