Originally Posted by blacktopspirit
its not the injection that wont pass rally regs (well actually that too) but its the fact they were never homologated/built with 4ages, only to run the 2tg and 4ac. therefore you have to run same block and head. well externally 4age blocks are similar to 4ac so you may be able to get away with it. however 4age heads are majorly different to 4ac, and id bet my bottom dollar the sprinter guys + others would have a major sook if ya tried to enter a 4age ae71.
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