Front and rear coil spring advice.....

[Run to Rund]

You don't say which year. Up to 67, front are tangential both ends and I use Moog etc, 5230 with 3/8 coil cut from each end. 68 up have the top square end so you may have to heat and flatten the bottom some so it sits right in the lower A arm after cutting. 64 to 66, rear are tangential on top, pigtail bottom and you can use whatever spring rate you want and cut the top end, heat and bend some to flatten the last half coil so it sits in the frame perch. 67-up are pigtail both ends so you can't do that, more difficult to custom tailor your height.