I just did my cam chest. I too was looking at the Feuling kit. The things that concerned me were the reports that the oil pumps were sensitive to CS run out. I don't recall the specs, but when I called Feuling they didn't have a solid answer for me. The other thing is the th Feuling kit still lacks some parts for my application (04 conversion) that I would have had to source elswhere.

In the end I went with a kit from Fuel Moto with Wood cams. At one point I was considering trying the Feuling kit with an S&S TC3 pump... Never got that far.

 

I run the fueling 525 in my 2012 FLHTK...chain drive....no special oil pump. I did a lot of research and talked with Fueling.... decided not to do the cam plate oil pump...just the cam. I am happy with that . Running Rush 2 into 1 and a free flow intake (S&S) otherwise stock....Here's the dyno sheet:

 

I dont know who at feuling said that says right on the instructions the CS limit is .002. Had a stage 4 with welded crank and went thru 3 pumps. Feuling is great stuff but it doesent work with any variables. Id stick with SE plates and pumps.

 

I'm running a Fueling cam plate and pump with my S&S 509G's and I get great oil pressure. Even in 90 degree weather without an oil cooler, at idle I never go below 10 PSI, which is sufficient at idle. Above 2400 rpm it jumps from 35 to 50+ PSI

like 99% of the aftermarket parts, it is an improvement over the MoCo stuff, or in other words it is the stuff the MoCo should have made and installed.

 

i was riding in 100 degree heat and 11 idle 42 at 3k rpm 27 around 2k with the fueling 525 cachets kit.

 

When I did my 117" I went with the Feuling pump, plate and lifters and have had zero issues. Oil pressure is great and very little blow-by. I would say if you go with their pump you should do the plate also as they are designed to work together.

 

My '02 EGC has the Fueling #7201 kit with 525 cams, cam case plate, oil pump, cam bearing, etc and it is good stuff. I did notice a quieter running engine mechanically, more power and cooler oil temps. The bike has the best output in the heart of the RPM range and these 525 suits heavy touring bikes well. It now has the S&S 97' top end and V&H true duals and now really goes..!

Before this bike, I had an '02 FXD that I bought new and had the hydraulic cam tensioner SE cam plate with Andrews 26 cams. The professional indy shop said the quality and performance exceeds the H-D parts.

As the Fueling product gets more common in the market, EFI tuners will have maps to match these cams.