ZR1 w/ SLICKS

[jonszr1]

.i used a different prom with fuel and timming changes above 3500 also uped the fuel cutoff to 7500.also left the line @6300 rpms. built my own with the help of some friends , but to be honest pretty much copied the one ski down it sells. and ya know what its not too bad around corners . but i am no road racer. there just is so much stuff that can break in a irs. stubb axels 1/2 shafts etc. plus the body damage if something really cuts loose . to me it just was no brainer as i had a whole 9 in laying around from an old mustang i built in 2003 . if some one is looking for a solid rear ski down it has one at a decent price that comes with coilovers is a total bolt in.my callaway z will allways have the irs in it . but the black car i use just as a daily driver and a drag car.