I for one did NOT say you couldn't make a six run! I said it's too expensive for what you get. Hell, I've been running sixes since 1951--yes, I'm old, but not senile. You put $3000 into a Chevy 235 or a 292 GMC (forget 230's and 250's--poor design--you will find very little in the way of actual speed equipment for them--235 is a much better engine--292 GMC better yet) and you'll have sweet running and sounding engine-a lot of fun.
Put the SAME $3000 into a SBC 350 or 383 and it will run the A$$ off the six! If you want to be stubborn about this, feel free--but do your research.