Hibs reached the third round of the Fairs Cities Cup at Easter Road despite having trailed 4-1 from the first leg in Naples the week before.
Fielding only a half fit wing man in the shape of Eric Stevenson, they threw aside the burden of that deficit and gave an inspired display.
The Hibs players simply brushed aside the Italians and used the ball shrewdly and at remarkable speed to carve the Napoli defence to ribbons.
In a memorable night Hibs produced exciting football of a standard that will not be matched for many a long day.
Hibs got off to the best of starts when after only five minutes, Bobby Duncan, the right back, ran on to a shrewd flick from Scott to hit the ball with such force from 20 yards that the ball was in the net before goalkeeper Dino Zoff could move.
When Pat Quinn scored a second goal just before the interval after a splendid run by Colin Stein the 21,000 spectators began to indulge in sweet thoughts.
And in the second half, kicking downhill, the Hibs players surpassed themselves by scoring two excellent goals midway through the half.
It was from crosses by Alex Scott that first Peter Cormack and then Pat Stanton headed the home team into a 4-0 lead, and it was only rubbing in the Edinburgh team’s superiority when Stein scored a fifth goal 12 minutes from time.
Montefusco was sent off the field for a particularly vicious foul on Stevenson.
Had the Italians had their way there would have been trouble on the scale last seen when Celtic were terrorised in Montevideo.
Hibs would go on to meet Don Revie’s Leeds United in the third round, who, despite being reduced to 10 men when Mick Bates, a second-half substitute, was sent off 10 minutes from the end, beat Partizan Belgrade 2-1 in the Fairs Cities’ cup second-round first-leg match in Belgrade.
Peter Lorimer and Rod Belfitt were Leeds’ scorers and Paunovic had Partizan’s goal three minutes from the end.
Hibs would lose the first leg at Elland Road 1-0, and could only manage a 1-1 draw at Easter Road in the second leg.
Also on the night Hibs thrashed Napoli, Dynamo Kiev, who knocked Celtic’s Lisbon Lions out of the European Cup, were themselves eliminated from the competition in Chorzow, where Gornik Zabrze, held them to a 1-1 draw to qualify for the third round on a 3-2 aggregate.
Manchester United, who had already reached the semi-final of this competition three times, qualified for the third round by beating Sarajevo, of Yugoslavia, 2-1 at Old Trafford. The first match ended in a 0-0 draw.
Brian Kidd missed a penalty for United inside the first five minutes, but John Aston scored six minutes later.
Just after the Yugoslavs had protested mid-way through the second half that George Best had struck their goalkeeper, Refik Muftic, the winger was brought down by Fahrudin Prljaca, who was sent off.
Immediately, in 63 minutes, Best scored the second goal and two minutes from time Salih Delalic scored for Sarajevo.
Tottenham Hotspur were beaten 1-0 by Olympique Lyon, of France, in their first leg match in the second round of the Cup Winners Cup in Lyon. Alan Mullery, their right half, was ordered off in the first half.
Hibs: Wilson, Duncan, Davis, Stanton, Madsen, McGraw, Scott, Quinn, Stein, Cormack, Stevenson.