Hello All

I am new to the forum, and just have a question for you guys. I know it may be hard to diagnose not heaaring the car, but thought I might find some advise.

We recently bought an 85 olds cutlass, it has a new 355 in it with just 2800 miles on it. Yesterday I let my wife drive it, we went about 2 miles on the interstate. As my wife got in the passing lane and gave it a little gas there was a moment of hesitation. As we got off at the exit and began to slow down I noticed a rattle coming from the engine, I could hear it in the car.

SO we stopped and got out, the rattle sounds like it is coming from the top of the motor almost like something was loose. I realized it is only doing this at an idle, when you give it the gas it stops. I called the guy we bought it from who built the engine, he said it needs a valve adjustment. Does this sound right? Or does somebody have any other idea?

Thanks,

John