It's not about staying where your/I'm at, I don't know if you notice but most asking for build advice especially for 318 are generally novist and Super Stock, F.A.S.T, Pro Stock, Sprint Car, Nascar info and mods might be a little above their pay grade while they're trying to figure out which RV cam to run, most that know what their doing here basically document their builds here.
No I haven't, I've mostly done the 340/360 top end on a 318 with 340 type cams in the past, right now I got the Mopar 380 hp crate engine.