CobraJet
My friend went 8.42 1/8 the other day out of the box! he's driving a 4 cyl. 87 lx coupe with a factory stock 5.0 engine with a X 303 cam,headers, pro products (edelbrock RPM style) intake, 650 holley DP,a little port cleanup on the E7 heads, stock C4 & 4.88 gears. I recurved the distributor so it would advance quicker and it immediately ran 8.21 1/8, still have to play with jets,timing,shift rpm,etc. roller rockers are the next addition,I believe high 7's are going to be easily obtainable. Total invested is under 4000.00 including repainting the car!