Dave Bisschop likes to use Comp lobes 3115B and 3116B.
He calls it the "road paver".
306 / 314
246 / 252
.4000" lobe lift
More often than not ground with a 112 LSA
Keep in mind if changing from a hydraulic roller cam to a solid roller cam you would add duration. Not a recommendation here, but something like a Comp 254 degree solid roller lobe would certainly not be overkill in a 505.
On the intake side I'm currently using Harold Brookshires tried and true 288 solid roller lobe. It has 255 at .050 and .4176' lobe lift. Peak power 5600-5800 depending on the pull.
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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
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