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Has anyone noticed that the BBK throttle body has a very stiff spring? My gas pedal takes a good amount of effort to push after I hook it up to the throttle body.
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1989 Mustang LX 5.0: 17" Cobra R w/255/40's
GT40 Aluminum Heads, Crane 2031 Cam
FMS 1.7 roller rockers, BBK Long Tube Headers
FMS Aluminum Drive Shaft w/loop
Cobra intake upper and lower w/24# injectors
70mm BBK Throttle body & 75mm ProM mass meter
190 lph Walbro fuel pump, King Cobra clutch
FMS 3.55 rear gears with Auburn differential
its not the spring. the tb blade is getting hung up inside the tb. remove the blade and use some sand paper and sand the inside of the tb a little. also carefully file the edges (corners) of the blade not so much the flat side. kinda round it off a bit. that should fix ur problem.
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70mm BBK throttle body spring stiff
