I run this Crane Hyd roller HR-222/339-2S-12 IG in my Challenger. 9.0-1 comp (runs on 87 octane), 360, 4 speed, 3.55, 27" tire. Excellent power and driveabilty with good idle quality. LD 340 intake, 650 Holley, TT I headers and TTI 2 1/2" system, ported later 360 heads. It has been 12.79@109 with full exhaust and air cleaner in place using drag radial.
Doug