Did you check with Larry Hodge? (Find his link at the top of the page under "drag wheels" on Racingjunk.com)
He has a much larger selection of backspacings than direct from M/T. I just bought two sets this week. Smokin' deal!
NHRA #7494 SS/H
1970 AMC AMX
"Best Appearing" @ NHRA '06 Pacific Sports Nationals
JeffLeeAzRealty@Qwest.net
602-418-9797