Originally Posted by
James @ M Developments
55s are bigger than greys,
i truely belive our 55ib T34 package is the best ever for a road car, endless torque from so low down!
Not strictly true about the Greys - they are an odd injector, where one can vary quite differently from another. Officially they are rated at 501cc, or around 50lb, but the set i have for instance all flow over 600cc at 37.5psi. One of the reasons why off the shelf chips for them can be a bit dodgy.
Rick