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Fi ?BeaversTA 09-21-2006, 08:33 PM I have a 355 LT1 stock compression with forged pistons, stock rods and crank. I am putting a turbo kit with an fmic on it now and only plan to run 9-10psi. I was wondering if it would be ok with just 93 oct or should I run a meth/h2o kit or just run some 100 oct fuel in it. The car is going to be used on the street and see some track time. Thanks jerminator96 09-21-2006, 09:16 PM With stock compression and that much boost I would say 93 octane fuel won't cut it. Is the cam stock? That would change alot of variables. Just my opinion though, take it for what it's worth. Jeremy BeaversTA 09-21-2006, 09:48 PM The cam is a custom turbo cam 226/224 .568/.548 on 115lsa.... any one else have some input? jerminator96 09-21-2006, 10:44 PM You need to figure out your dynamic compression ratio, that will tell you what kind of boost/fuel you can run. Roadie 09-21-2006, 11:37 PM it'll be fine with 93... 8 intercooled psi with a good tune is pretty safe on the stock hyperexplosive err. hypereutectic pistons. forged slugs with a good tune will take 9-10 without a problem. | ||