Right chaps need some help im building my escos and have the engine management from fletchcossie old escort witch is autronic sm4 I have every part from him apart from his crank setup witch he sold with the engine he had my problem is I cant get the car to fire up I have checked every wire every sensor I have tried 3 diffrent bottom pully set ups 2 lug 4 lug and 36-1 I can sort of get it to run ruff on the 4 lug set up but no luck I have been in contact with mark at msd(top bloke) and he sead try the 2 lug pully but still no luck im getting good spark but im soaking the plugs in fule some times I get a loud bang from the exhaust and on some occasions I get a big back fire witch causes the engin to jolt back and has damaged 2 starters eney help would be grate thanks