i am hopefully rebuilding my engine soon to a spec not catered for by a pre programmed chip lol. after i have built the engine how do i go about driving it to a tuner to get it mapped? or is it a trailer job! also what do i do about running it in? i mean if it doesnt have a suitable chip in at the time then surely i shudnt drive it, but then u cud say it not worth getting it mapped until it has been properly run in


help
as i have no idea what to do

cheers