Strut question for 74 super

[Humble]

Here's my street car setup w/ full tank and driver:

LF 488 RF 437
LR 691 RR 633

Front: 925lbs. 41.1%
Left: 1179lbs. 52.4%
Cross: 1128lbs. 50.2%

Total: 2249lbs.

I run the 200# up front and i'm not sure what the CPM would be but I'd like to match it and add 10% or so CPM on the rear. You might be in the same territory with the subie swap.