'66 Valiant restoration general help

A 904 trans will fit better in the trans tunnel than a 727. I used a throttle cable from a 73 Dart V-8 and pedal as well. I fabbed a bracket to mount the pedal in the 66.
I used a 72 Duster gas peddle and cable also and made my own t.cable holddown bracket,now I have to figure out kickdown.It,s a 66 Dart 225 6 cyl.904 auto.It had the lokar gas peddle and cables,but wasn,t installed properly by the PO and I didn,t like the peddle setup.Any suggestions on kickdown.PM me if any advise.Thanks.My car has a 4bbl. and headders with duals