Question on holley 4150

iam not shure what azz means ,if it mean bad(not good) or it mean good i would still check the pv........... also you may try more timing,says 36+ (i run 38 but dont have e heads)holley are not all ways a bolt on carb... you may have to drill holes in the prim butterflys or ajust the sec butterflys just to get a good idle...a good book would be....dave emanuels super tuning and modifying holley carbs.....hope this helps .....good luck