Three similar hydraulic roller intake lobes....
Comp Magnum High Lift #3122B (Old Faithful)
289
236
160
.3800"
0.570"
UltraDyne #HR12
288
234
155
.3533"
0.530"
Comp QXI #13451
289
237
158
.3950"
0.593"
The QXI Series lobe profiles are designed to provide the highest available valve lift for modern cylinder head ports, along with excellent stability and the broadest possible power range in hydraulic roller applications.
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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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