Jay yes race gas for sure had to be mixed in on the 455. ON the 400 when we did dyno it no audible detonation but race gas picked up some HP on it I want to think 5-8hp.
I know John Schloe on his RAIV stocker and John Angeles on his RAIV SS car both run single patterns.
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
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