so basically for $429 you get 11 rwhp and basically the same thing as when you mash the throttle entirely.
$429 gets you pretty close to a set of PI heads and intake for that 4.6 truck Take a little time and port them and you could be talking about a 50 horsepower gain.
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93 Thunderbird 5.0 HO
89 Firebird L03
95 F150 XL
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