headers + Stage 8's + in car = beers and Bandaids,Good luck.Same deal with Flowtech 1-5/8 unequals. I used the stage 8's and did them while the motor was on the floor. I've got FMS shorties and Stage 8 bolts to do on my '88 LX Mustang, and I am sure there will be more than a few swears since the motor is still in the car.