A guy at a track I went to has a 280Z with a intercooled 231 stuffed in there. I think he was running mid 11's and he was only a year or so out of high school.
I wanted to do a conversion with a 81 RX-7 I've had since high school but I never got around to it.
That car by the way was one quick little bastard. I was the fastest kid in high school until the one kids dad got a new 86 T-Type and the thrill was gone.