I've got about 2mm on mine, over 2000 miles with no problems. This style wheel has a very large cross section and really don't flex.
Maybe tighten the banjo a bit more to align the flat to the wheel and give yourself a little more room.
Happy Wife... Happy Life
MK 3.1, IRS,Koni,Wilwood 4WDB,Wilwood pedals, Quick rel steering wheel, 450HP/399ci(351W)/TKO600 5sp,17" AR Cobra III
Still building... but I'm now on the road
B.A.R exam passed, got my plates 09-28-11
Currently in the stable:
1965 Mustang fastback W/Paxton
1965 MK 3.1 Roadster (399ci/TKO600) paint complete 12-08-12.
1968 Mustang conv 302/C4 (bought in 86')
1968 Mustang coupe J code (for sale)
1956 F100 project Chevy 350/350
2001 Paint (1 HP)
In search of the next project. :)
2005 Mazda 3
1999 Corvette conv
2007 Palomino (1 HP)
1995 Appaloosa (1 HP)