on my 85 500 sec the original fuel hose needs to be replaced, now these are the 2 lines that come out of the fuel distributor on the drivers side, hard line then to a hose and then back to a hard line that is fasten to the firewall near the master cylinder with high pressure machine crimped type fittings. my question is can i cut the old hose off and run new fuel hose with hose clamps will that handle the pressure or do i have to take them off and take them to a hose shop ?

no, too much pressure and metric pipes. just get new ones. just did a 210 e420 pair for about 35/ea. good luck, chuck.