Is $500 for a set of heads mentioned above a good deal. Has anyone heard of them being used? They have springs up to .650 lift, with rocker arms, and about 1000 miles total on them. Had them on a 416 that didn't get driven much. Still gonna get them pressure checked.

Thinking about putting them on my engine bored 6.0(370) and having someone port match them to my intake & cnc. It has lt, fast 102 intake/ tb, Asa cam (but will be getting a custom spec cam), and fast 57lb injectors.

 

i dont know about the 255's but RHS puts out an amazing product. i would recommend giving them a call and talk to them about your build. Texas speed also sells RHS products. you could as a few of the texas speed vendors on here as well.