Also forgot to ask, I was told that I need to install hardened valve seats in these heads to be able to run unleaded fuel, is this true? What else would I need to do to these heads to get them ready?
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87 GT
As of 2/1/06
650 DP Carb
Crosswind Intake
Edelbrock Performer Heads
97 Explorer Bottomend w/ B-303 Cam
1.7 Roller Rockers
Flowtech Longtube Headers
Flowtech H-Pipe
MSD Black Wires
MSD ignition
MSD Distributor
Blaster 3 Coil
Electric Fan
Underdrive Pullies
T5 Trans
Hurst Shifter
Lowered 1.5"
373 Gears
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