hey folks i have a s14 it has the black top vvt engine out if the s14a/s15 any way i blew up the engine.. got a replacement it wouldn start but i narrowed in down to the spark timing played with it a bit and now its running but very badly im nearly 100per cent sure its the spark timing thats out.. does anyone know how to set this up from scratch.. it revs to about 5k hesistates and then goes on..
thanks for your help..