I dont have SR's, I run windsor JR's w/Hyd flat cam,230
[email protected] .512lift 9.5:1comp. in a mustII that weighs 3300lbs.w/driver. 12.50's @ 108 best. All published dyno reports I've read suggest SR's make about same power as JR's just a little sooner in the rpm range. World heads are in need of...