You gotta keep the lash tight enough to be on the clearance ramp,else the cam will shock the valve-train, and besides that being hard on parts,it will be noisy with all that crashing going on.Maybe noisy is to quiet a word.
I remember a certain red 68GTX-440 showed up at my door, with the engine clattering away.The owner hopped out and asked is this normal?, and proceeded to re-tell me his story. He had been by a few times to discuss his combo. He wanted to race and trounce his brother, who had a highly modified Buick GN turbo. I told him to forget about it. I said just build a nice street motor, something you can have great pleasure in touring around with on weekends.I had come to know this fellow over the span of a few years,and we had been bantering the subject about,over the course of time. He had wanted me to oversee the build, but I had declined because of his unrealistic goals. So now here we are with his grand race engine sounding like an old threshing machine.
I said no that doesn't sound normal. Take it back to the race shop where you had the work done, and get them to relash the beast.He did,they did, and it came back purring like a kitten.
The GN still keeps showing him the way home. And he keeps throwing money at that beautiful GTX. And now he has a car that sits in the garage about 99% of the time, and although it is fast, and sorta quick, it still follows the GN to the traps.When the 440 was stock, he used to drive it everywhere, whenever he was home,(he worked out of province). Now, I haven't seen him, driving that car, in a few years....
