I have a good working 727 trans out of a '78 Dodge truck with a 318 that I installed in a hopped up 1972 Challenger with a 340. All external band and linkage adjustments have been checked and kickdown lever is set to hit the back of the stop at WOT. Problem is the max shift point I can coax out of the trans is about 5000 RPMs while leaving shifter in drive. I'd like to raise the shift points closer to 6000 RPMs. Do I need to swap out and install a performance valve body, or governor weight, or is there something else I can do to raise shift points?

1970 Superbird 440 Six BBL, 4-Speed, Dana, FJ5
1969 Daytona Charger 440 4-Speed, Dana, EV2
1971 340 Challenger Conv. Flemington Speedway Pace Car, FC7
1970 340 Six Pack Callenger T/A 4-speed T8 Tan
1971 340 Challenger RT Formal Roof, EV2 w/ V2 Stripe & Orange Houndstooth
1969 Talladega Torino, 428CJ
1969 Gurney Special Cyclone Spoiler II, 351 Cleveland




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