hi guys,i'm going to harry's u pull it in pa and i want to get a posi rear with some good gears.are the 3.42 gears good for the n/a motors or should i find something else?another thing i was wondering is if they have a 84 like mine but with the turbo and can get it pretty cheap what all do i need to get besides the turbo,intake,downpipe,computer,etc.any help would be greatly appreciated because i'm going up there tomorrow morning.thanks.