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[hdrider53]

Still figuring out my build with SE MCR heads, 1550 flat tops on 02 Road Glide. I really like the looks of the Woods TW7 cam but cant get it for my older model TC. So now I have narrowed my choices down to the Head Quarters TC-575-HC or the Andrews TW54 I'm leaning towards the Andrews to save $$. Both look good by the numbers but was concerned by the 31 overlap on the TW54 as compared to the TC-575-HC which has 44 overlap. What effect if any will the lower 31 overlap have on the bike either good or bad. Has anyone heard anything negative about the TW54 cam, any reason why you wouldn't use it. My MCR heads allow up to .575 the TW54 goes to .555 so should be a good fit. The Head quarters go to .575 on intake so it would be at the limit. Looking at the Big Boyz calc I will be right at 10.04/1 static and 9.23/1 corrected at 191 CCP if I use .30 HG, zero decking and 78 cc chambers. Numbers looked good but I'm a power junkie so which cam will give me most bang for the buck? Any guesses on HP and torque numbers.

[nidan]

Steve at GMR has done a number of builds with this cam on a variety of engines ..There are dyno's on the site .... .drop him a line

From what I've read and seen it runs cooler then the SE255 and produces a little more power in the upper ranges . 

[wfolarry]

The lower overlap will usually translate into better low speed drivability. The 54 is a good cam.

[HD Street Performance]

The S&S570 has always been a producer with those heads.

[hdrider53]

I would consider the SS 570 if they made a chain drive version for a 2002 Twin cam I don't believe they do.
I don't have the funds to switch over to a gear drive set up.