Actually i m trying to amplify 9.7kb insert by phusion green hot start dna polymerase but I don't get amplified product at all. I changed some parameter of pcr cycle and reaction mixture but still I don't get amplified product.
Also consider your MgCl2 concentration (If DMSO/BSA does not work for you). https://www.neb.com/tools-and-resources/troubleshooting-guides/pcr-troubleshooting-guide