Carb problem

O.K., I got it. I took the carb bowl and metering block off and hosed it out with carb cleaner, found what looked like spider web in one jet(#59 jets). I assume it was part of the old gasket I failed to clean out. removed the idle screws, hosed out everything, put it all back together and it runs great! So I guess the problem was not enough gas? learning something everyday. I called holley and they said the power valve that came in the kit was a 6.5 , and that it should be big enough, how will I know if its big enough/not big enough? Reading the plugs? Thankyou all for your input.