351c Iridium Plug Gap Size
I've just bought some Iridium plugs for my '71 Mach 1 (351c, Fat leads, Pertronix, uprated coil) and the gaps are preset at .043, 10 thou more than recommended gap for the normal copper plugs. Would it be ok to fit plugs as is? It's just I remember reading somewhere that you can widen the gap a bit over stock with Iridium plugs? Is 10 thou too much? Stick to recommended oem gap?
1971 Ford Mustang Mach 1 owner