Originally Posted by
Jay,
In my opinion if the afr's are correct the car will do what it does mpg wise and when a cossie spends most of the time at wot who gives a fuck


I agree Jay if a Cossie aint using loads of juice your not enjoying it.
Many years back we did a mpg check after a day of Topspeed testing at Brunters it was 4mpg on race fuel. These cars were inefficient piles of junk back in the days so dont expect too much now



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