Oil Coolers

[BigDan3131]

I know all to well about running cold as a former street racer [ I had to quit, too many kids saw me pull the wheels off the ground when I hooked hard at a stoplight. I left hard and he was still sitting at the light by the time I reached the other side] oh the good old days in Cali. Anyway I have a 7 quart oil pan low profile along with a 2 quart extra capacity trans pan. The tranny cooler has its own fan and I have another I can use with the oil cooler I will be buying. I tend to overbuild things to future proof myself, I have only a 435-450 hp small block but my fuel system can handle up to 1200 hp.

Should I use -6 lines or -8? I think -8 would be better.