Originally Posted by
bluntys1rsturbo
also just to note if collins get a good engine build to do or a car to be mapped then they usually ask for mark from gt motorsport to come do it
even though he cant map cosworth engine management

ive used tweedy a few times and hes quite good but he told me take my cossie managed s2 to collins to be mapped as he couldnt do it,,he was doing a couple days a week at collins at the time dunno if he still does