lift kit help

[biggpoppa3]

Ok i got a 73 chevy pickup heavy half 4x4. i recentally got a blazer with a four inch lift kit on it i got the front lift leaf springs and the block off the rear. the blazer had the stock leafs in the rear i think the spring pack only had six springs, mine has nine plus overload, so i plan on running my springs in the rear with the blocks and the lift springs on the front. the only problem is is my front end sits lower than the rear. I also took the overloads off the blazer i was wondering could it be possible to put the extra set of overloads under the front lift springs to level it out cause the thickness of the overload is the same as how much lift i need in the front to level it out any info would be helpfull thanks