so i got a holley on my 12a and its not running right at all wont idea...

car mods: Rb holley manifold,holley 650 vac 2nd, msd 6al, msd ss blaster coils, RB header 3in exhasut, high psi oil reg, NOS nitrous plate system(half inch plate).

carb specs: holley 650 vac 2nd, 64 prim jet, 68 sec jet, power vavle block off plug, orange pump cam,

can any1 help me out and get me on the right track...how big do i need to make the airbleeds, what jets should i have in it, what is a good place to start the ideal mix at? ive got it at 1 1/2 turns and it wont run longer than 15 sec

i heard i should run a 1 inch spacer i need help guys

thanks