This is referred to as 'Street Rod' Wire Looms, but the designs and shapes included could be the perfect fit for your engine.
Includes four pairs of different styles, plus the typical wire separators for one to four wires.
These have a good shine to them and don't need to be painted.
Hole size for spark plug wires in the 1,2,3,and 4 hole separators is .018"
Hole size for the multi-hole angled separator ranges from .043" to too small to measure.
By Detail Master, 1/24-1/25 scales.