i have a 92 nc fairlane factory 302 windsor v8 i have notice only every now and then when i turn my car over it starts like normal but once out of about 10 times it will sound like its making a wineing noise that doesnt sound to healthy and when i turn it off straight away to the off position its still like its trying to turn over even though its on the off position if you know what i mean what could this be ?

Sounds like a dodgy starter solenoid.

can you please tell me how to replace this and where it is located mate ? cheers