I was looking for a 6.0 or 6.2 and they are hard to find locally so I am gonna move forward with the 5.3. I am gonna bore it out and go ahead and run nitrous.

What is the safest bore diameter these motors can be bored out to?

I am looking at going with a Howards Cam # 190375-10. It is a cam made for LS running Carbs. The reason I am going with Howards Cams is because my dad has used them for years in many street rods he has built with great results. It was always between Crower and Howard Cams.

Any suggestions from the members on here?