producer, I'm also considering the hq-ooo39 for my 95". What comp are you running those cams at. I have a 04 flhrs, Builder suggests 10-1 comp for my build.

 

The HQ 575 is a great cam in a slightly modified engine, it really needs a bit of a compression bump to work as designed. It will work in a basically stock engine but will be a bit sluggish in the lower rpms ranges. I run it in my 120". If the engine is staying basically stock no compression increase, then it is the HQ 500 or 525 as I suggested earlier.

 

Ok, I understand. I missed his performance goals.

 

04 RKCRR,
10:1 is a good, safe compression ratio for that cam in regards to detenation issues and engine heat.

I'm running 10.4:1 with CP Forged flat tops. The higher ratio with my 800+ Lb bike is a bit tricker to tune. I did it for high way performance. I still have very good low end torque too.
I'll have to try a wheelie next spring.
My bike runs like a sports car on the highway and I get very good mileage on top of it.

You will love that HQ-0039 cam. Get head work done too. It's worth the extra cash. you will gain it back in gas mileage besides performance.

 

i agree also dont forget about the 625 same as the 525 only more lift great cams .

 

I'm getting head work done. I just don't want any valve train noise or pinging. I thought the 0039 was just a bolt in cam.

 

You won't have issues. The 39's are not bolt in. you will need adjustable pushrods. I recommend the SE tapered solid body adjustables or an equivellent. That's just me.

 

The 0039 is not a bot in. The 0034 is.

 

if you are going with their cam i recomend them doing your head work also.
some parts will work well with others and some dont