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I have a 67 mustang with a tri-power 289 Hi-po. What needs to be done to install a supercharger? I assume the tri-power must go... correct? What other changes will need to be made?
 

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The 289 hipo's had 10:1 compression, even with the largest chamber heads on the market your not going to get the compression low enough, so your going to have to rebuild the motor with dished pistons. I would start with a different motor, those 289 hipo's are rare motors and probably worth some money.
 
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