on my 78 pontiac lemans with 305 v8 ,i trying clean the engine bay ( primarily intake ) ! i need some help in what vacuum hoses that could be eliminated ? installing new valve covers ,breather cap and pvc cap.my pvc hose slits off into 2 hoses and new chrome one comes with a chrome hose i would like to use and not cut in. also other hoses that could eliminated without effecting drivability ! any help,ideas would be greatly appreciated ! thankyou ron