go with a ford kit and use the factory style torque arm suspension as it is basically a long ladderbar and can plant the tires really good , but don't use the stock one as you will bend it get the aftermarket ones . , if it wasn't for the torque arm I would say use a 8.5 ten bolt with a girdle as they are durable enough to hold up , we have been racing a 3300 bound camaro ( sec gen ) with a BBC running 10:35 @132 for the last 4 years without a problem the only thing we had to do to it was weld the tubes to the pig .