904 Upshift

[gomezchar]

Guys,

I am new here so thanks in advance. I just put a rebuilt 904 into a '67 Dart GT. It worked fine behind the 273 or so I recall... I recently built a 360 and put that in, but now it upshifts WAY too soon. Other than the kickdown linkage, is there an adjustment that can be made w/o removing the tranny?

Thanks,