Matt, did you get a build sheet that lists what pistons they are? I listed both just incase they were a FPS sereis and not the SRS so the inline valve 2.02" AFR will not clear...then the TFS heads are a clear choice.
Ive made similar power between the 2 heads, you can not compare the basic TFS 170cc heads to the 190cc I quoted, 2 different animals..they make and support big power. You cant compare a AFR 185 to the TFS TW 170cc either.
I personally am a AFR fan and the RHS stuff has really been impressed...cam profile depends on the combo Ill pick different lobes. Maybe something in the .550-.570 range 224-236 duration on a 112 or so, I have a few profles in mind
Snow kit is complete everything you need to install...Safe Injection is extra, same goes for for Boost Juice (I personally prefer the boost juice)
Boost Juice™
Boost Juice™ is Snow Performance’s proprietary mix of 49% methanol and 51% water. It is made in a controlled environment with special care to make sure the ratios are accurate to result in a high performance water-methanol fluid formulated for use in the Boost Cooler™ injection system.
Boost Juice is required as the exclusive fluid for lifetime warranty.
You can give me a call if you want to talk things over 717-343-2108