My speed shop owner has run a 427 all his life and doing right well in nhra . He has the ford factory light weight Jim Van Cleves had that made history in drag racing . Not much with a 427 he has not done and learned .

This tip most will not beleive . A 428 cj mostly and some 427s , the skirts would break off number 7 and 8 piston . The simple reason is cause most people put the 7 and 8 wire side by side from dist all way to spark plug . The wires cross fire being side by side . This will cause an ark firing through the wires that cause this . Run the no 7 wire in front of the no 5 and around to spark plug . Run no 8 wire other way to no 8 spark plug . That will stop the skirts from breaking turnning high rpms .

I turn my 427 9300 out the gate and 10,000 changing gears . Turnning a 427 that much you HAVE to close up all ford factory oil system and redrill a new route maintaining 10 pounds of oil preasure per 1000 rpms turnned . We hold 100 pounds of pressure at 10,000 .....Ok FE now let me hear it lol