no proof at all, only my own eyes .
infact after looking at the sheet from nms its mapped to 6750 rpm. so i made an error, but if i had solid tappets and double valve springs and a strong engine and changed my t 3 , im sure the extra 250 rpm would really help .
i dont think nms would have any reason to tell porkys.
ive seen the car rev up to 7 k often , despite the fact its only mapped up to 6750 , but as i say i have no proof.....also , the combis for sale, come and test drive it and see for yourself