Brian,
I'm trying to install a Cobra Racer Pro in my NA using Sparco sliders and side mounts and your NA/NB seat rail
http://www.good-win-racing.com/Mazda-Pe ... -0555.html
I've found that, when the slider is moved forward of center, it hits the bolt holding the rail to the floor. (This may also happen in the rear, though there seems to be more clearance there, but I'm concerned with moving the seat forward.) I bought some 10x1.25 socket-head cap screws in hopes that the smaller head would let the slider past, but there is still interference.
Do I need to find some super-low-head screws to make this work? Is there some other approach I should use?
Thank you for your help.