Just keep in mind the Crower 68404 coil bind is rated at 0.950".
0.3134" lobe lift x 1.52 rocker ratio is 0.476" lift in theory. Less pushrod flex
This for interest:
https://www.hotrod.com/articles/how-...rance-is-safe/
Now I'm sure there are some who feel the farther from coil bind you keep the springs, the longer they will last !
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE