"I don't actually have the Comp Cams rockers in hand yet, but rather those are the ones that I was seriously contemplating buying them from Butler for this build." Personally, I'd use Harland Sharp, or Crower, before using the Comps again. I dug out my notes on that build, and not only needed longer pushrods but also had to get longer rocker studs to have sufficient thread engagement.
If you think you really need the stud girdles, then consider going with shaft rockers. I used a set of the Yella Terra shaft rockers last year, bought through Butler. You need to know your valve length/installed height before ordering though.
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'.
'67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust
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