You will need a multitude of the sparkplugs. Start test fitting them for ones were the ground strap is clocked towards the chamber or clocked away from the piston. And it may be necessary to shorten the ground strap as well, by grinding (like what I had to do).
The cheap copper motor craft plugs is ideal.
Even though the straight edge is close, remember their is still the gasket thickness adding space.
The cheap copper motor craft plugs is ideal.
Even though the straight edge is close, remember their is still the gasket thickness adding space.