you don't mention how many miles and if the odometer works.

to check for chain stretch, pull both valve covers and with a 24mm socket and ratchet, turn motor clock wise as you face the engine and look for line up marks on cam towers. the d/s cam might line up and pass before the p/s. this is not critical, unless it is quite a bit. when the mark on the p/s cam is on, look at the crank pulley. all 3 marks should be close to 0. if the crank is 0 to 5 degrees past, don't worry about it. 6 degrees or more, the chain should be replaced. always replace the chain and tensioner together. good luck, chuck.