Hello i got a quick question, for the past year I been building my sr and I finally got it to run and got 260 miles on it so far... i have not taking it over 50mph and been just driving it around town. My question is how much miles should I put on it until i can safely take it to get it tuned and be able to boost it?

My other question is if its ok to boost it at all while im still breaking it in? I'm talking about like 5psi at the most? And till what revolution its ok to take it up too? Or any other tips are welcome! Thanks!