Another 318 set up
honestly, if you want a 318, try find a running 318 magnum. clean up the heads with a little bowl porting & 5 angle vj, trim the guides a skoash, get hughes #1110 springs, thin head gasket, rering, get the roller cam reground by bullet cams using their HR259/316 or HR259/326 lobes on the intake, HR265/320 on the exhaust, one of the chinese air gaps, a 600CFM carb and headers, and you have a very nice, very streetable 330+HP motor that will work well with mild gears and stock to mild stall torque converter. if you already have a good running 318, start with a 600 cfm 4bbl, headers, and something like a comp XE250 or XE256. then maybe look at a mag head swap for the next step up.