I've done a lot of the things you've mentioned.

3 angle valve job - didn't notice a difference because I did it when I swapped... going from a D15B7 to a B18C1 is a jump in itself, but I built it all before hand so I don't have a baseline to give you.

A 0.010 overbore will be just fine to clean up the stock sleeves. You could go 0.020 over, but there's really no need.

I ran Eagle rods up to 282 whp and they never even felt it. After recently taking the rods out, they actually look identical to when I put them in the block. They are not even used. :chuckles:

What motor is this again? I assume B18A/B because of the CR. Why do you want to upgrade the cams? If you do decide to do the valves/springs/retainers you need to do the cams. I've always been discouraged from upgrading cams because they say the stock GSR cams will handle a great deal of HP. I don't know about the LS cams though. I think it would be a waste, but that's jmo.

What are your goals, James?

hih