what jets should i get for a stock port with a holley 465CFM w/headers and racing beat intake (i didnt buy a RB prepped) also i heard i cant keep my A/C kick up??
is that right?

 

51's in the primaries, 81's in the secondaries. Give that a try and see what happens. You may want to run smaller as it's a stock port.

Not too sure about the AC.

 

also you will need to change the cam to a green one. that will help a whole lot. if it is vacuum secondaries you will need to change the spring also. goto the yellow or white one.

 

51s? If that is the case I am running way to large. I have a 600 cfm and have #60 jets. I have a stock port 12a, no emissions equipment, stock header straight piped (2.25") to a magnaflow. What jets would you recommend me running. Lowest jets I had in it were #54s but it ran so lean that it would backfire at startup. accel, and decel. Of course I also didn't have my idle mix screws set right either so that could have possibly been the problem.

 

^^^ no, leave your 60's in there. you have a holley 600. not a 465... the jetting WILL be different. on my holley 600 i used 65's in the front on a stock port 12a!!