Just pulled the cam out of my 69, and i don't know what cam it is. I bought the car with no engine info. It is a 400 with #48 heads. i pulled the cam and it has 857830 imprinted on the back of the cam. no letters on the cam(tells me it is not a factory cam). It did have dual valvesprings with no dampeners and hydraulic lifters. I looked on comp cams, lunati, crane, & crower and could not find any p/n, or grind # that match this. anyone got any ideas?