Doug, i definately think you have converter problems, i run in the mid 1.40's with my Malibu and it weighs 3200 lbs. plus and only 377" with a 5500 converter, leaving at 4200 on the trans brake. That's with 14X32's and a 5.43 gear.
Either that or you're spinning like a big dog.
JMO
Zip.