carb issues

I have a 302 with p heads with work done on them putting it at about 9.5:1 with E cam, shorty headers and victor jr intake with a holley 4150 650 cfm its running way rich I know the primarys are jeted at 67 and I dont know what the secondarys are jeted at. this car was a budget build I have about $4,000 in the car counting purches of the car its self. I know the jets are way to big I just need an idea of were to start.

Im running at 7 right now the jets I know are way to big I picked up the carb with only 10 miles on it for $100 I know it needs to be brought down for my set up. I also tryed to e-mail holley but as usual no reply from them.