SVA is something like 50cm at 45° to the tailpipe at the same level, held at 3/4 max power RPM, ie around 3000 - 3500rpm.
SVA limit is 101, most tracks require under 100..

__________________
Adrian - 350 SBC/RPM, 3550 TKO, 3.54PL, 2005 GD Jag, stopped counting at £28.5k.
Status: J224 must have developed a fuel leak as my tank appears to be permanantly empty