I am also planning to build a 331 that will have the XE274 cam and either AFR 185s or Windsor Seniors. That is what I am going to do with my 302 after it is out of the car.
This is purely for information ... I was curious if anyone actually has used AFR 165s with a XE274 cam on a stock bottem end.
yeah, the 331 will have probe pistons. they are actually sitting on my desk at work. you should see some of the looks i get when people stop by to ask me a question sor something.