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Pontiac Forum: Help with engine upgrades on my 70 gto
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  #11  
Old November 17th, 2018, 08:06 PM
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cammerjeff cammerjeff is offline
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72cc aluminum heads should not be an issue with 93 octane gas, not sure about 91 octane.
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  #12  
Old November 18th, 2018, 10:01 AM
dwd70gto dwd70gto is offline
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I think I will stay with the 85cc Kauffman heads and use 91 gas. I think I will go with the HO 068 cam, because of the 400 auto and power brakes.
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  #13  
Old November 20th, 2018, 01:54 PM
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It should run well with that combo, but I would ask Jeff Kauffman what he would suggest as he knows his product better than I do, or his brother who's name escapes me at the moment.
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2009 G8 GT
2006 Mallet LS2 Solstice
1978 Catalina Safari Buick 350 TH350 soon to have a Pontiac 400 4bbl installed!
1978 Sunbird Safari Buick 3.8 2004R
1977 Astre Formula 215 Buick V8 T-5
1973 Lemans Safari 400 4-speed (factory)
1971 Catalina Freeway Enforcer 455 TH400
1969 Firebird Sprint 301 OHC-6 T-5
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