good evening all

my problem is this i have a transplanted xr2 mk2
s2 engine had it running great

and now it does'nt

tried towing it
but to no avail it's as if there is no petrol or maybe no spark
why run then nothing altogether in an instance i'm now at my wits end with this carry on

any help to solve

would be of
great help pleeeeeeeeeaaaaaaaaassssssssssssseeeeeeeeee