Hello, I have been trying to find info on people dropping a 455 in an 80's model cutlass. I have hit a few dead ends with nothing more than pictures. The cutlass right now is a 231 V6. Does anyone know of any big issues I am going to face dropping the 455 in? I have heard that I cannot do headers because of a clearance issue on the passenger side. I am a major olds fan and any info you have for me would be greatly appreciated!