Hey,

I am getting the texas speed 228R cam for my 6.0L. The specs are 228/228
.588/.588 on a 112 lsa.

I was wondering if you guys thought it would be worth going with the dual PRC spring kit. Its about $110 more than the single spring kit.

I was also wondering if I need special valve stem seals. The thunder racing kits I was looking at came with them, and this kit doesn't.

Thanks for your help.