@GM that’s an interesting article on break in/running in. I knew some of that but learned a bit. I expect in this case then Devil may have suggested over caution with 1000 mile run in. However the advice for first 500 miles was in line with article.
I’m almost through it now and to be honest a second oil change in another few hundred miles can’t hurt. Still good to read up on this stuff. Thanks!
I got blowby on my evo engine , most annoying as they had to take out pistons and rehone the bores , after that they ran it in for me only like 100 miles I believe , and that engine is still going to strong to this day