FTB wont launch unleashed

[mudden98]

THis is my pastebin log. WHen I try to launch, it downloaded the mod pack but it will says it cannot create a Java Virtual Machine. Help?

http://pastebin.com/gFEUcH1U

 

[lavarthan]

Error occurred during initialization of VM
Could not reserve enough space for object heap

Java ran out of memory. You should get the 64bit version of Java so you can allocate more than 1GB. Be sure to remove all the 32bit versions as well as any other version of Java. Now allocate 2GB in the launcher and try adding these arguments.