The end carbs would need to be opened up for the added flow needed as a starting point.
Maybe one of our forum members and Tri-Power experts Dick Boneske could handle the carburetor work or advise on who could do it. Intake porting I’m not sure but shouldn’t be hard to find someone in the Pontiac head and intake porting business to handle it.
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1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/2.56
2002 WS6 Convertible LS1/4L60E/3.23
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