right,checked the cam timming and thats fine so i had another play with the dizzy timing and tick over/co but this time by ear and seems to run alot better but still struggles after 5100rpm.would it be worth me taking it to tsr and having a power run on there rr and see what they say,would they be able to tell me whats wrong or what it needs from a power run as when ive read in fast ford when they do there dyno days the bloke who does it says a comment on how the cars running and what it could do with.thanks parrot