I am building a 393 stroker for my '86 and picked up a set of new AFR205 heads dirt cheap, damn near a steal, $1,200. Since I was able to do this, I could make some money if I sold them (for about $1,700) if I could find some heads that are better. I am keeping this all motor, no power adders because I'm going to be using a stock block. However, I want to get everything out of this engine that I can naturally aspirated. I wouldn't want to spend more than $2,000, though.