Rear leaf spring recommendation for 67 Barracuda

I don't know what the difference is in your car and a 65 Valiant rear wheelwell but I am sure they are different, just how different I don't know.....BUT......on my 65 I ran the 002 and 003 SS springs with the 3/4 MP offset hangers and shackles with 28/11.50/15 MT ET Streets on Centerline 15 X 9 Auto Drags. Car went mid 11s and I drove it everyday for almost four years. Does that mean I'm a keyboard mechanic?
No just the opposite.
That means you have real experience.
That is the kind of input I was looking for.
Thanks