318 for 12.80 bracket car

I though you were trying to build on a budget??..turbo-charging ain't cheap,and is'nt always worth it..i got a guy at the track running a 360 magnum turbo-charged in a '71 dart against my mildly built 360 duster guess who runs 12.60's and who runs 11.80's..personally i would'nt put the time or effort into a 318,you'll be better off starting with a 360,or the previously mentioned 340...