I had that cam in my 400ci Turbo400/3.55 geared GTO. It ran a best of 13.6 on some 225/70-14 T/A's. Nice cam.
I swapped to a 220/224 .513/.528 lift hyd roller and have run a 13.5 even with a dry float bowl half way through second gear. The engines flexibility is now amazing. I'm working on upgrading my fuel system and hope to get to the low 13's or....... and still have a good idle with 15" vacuum.
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frittering and wasting the hours in an off hand way....
1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core. 
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