Yes, I have the X brace, thanks for the comments
After talking to a couple race car builders they all said that if you can do it the X will make the Fox body very strong, they really need it.
I did all the work myself, I took the basic 8pt S&W kit and used the side bars to maek the X brace, I bought a piece of tubing to do the bar that runs between the shock towers and I took the rear bars from the kit and made them my side bars, it turned out really great and the car is very stiff. I plan on going to a blower in the future and although I love the noise thise SQ's always sounded sneaky, could be some fun. I was looking at the D1's from ATI or maybe a YS Vortech, I want to gop low 10's with the power to go 9's with a little more boost, don't want to worry about the NHRA licensing.
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Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon!