Scat I-beams in my 410 stroker, 5 years on this build, no problems, mid 10's, driven hard on a regular basis.

67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....