318 Cam Maybe Not

Still has the stock heads on now. I know it's at least mid to later 70's 318, it has hardened seats. Talked to a speed shop and they want to know what cam and springs I'll be using before they do any work. Hopefully the reason the truck I got the 302 heads from wasn't there because they were cracked. I don't think I'll be too hard to please in this area. I've chirped the tires with the 2 bbl that's on it now. But I want it still to be pretty streetable. What is the closest to a stock 340 cam?