Engine miss

[76k104x4]

well first off i have a 76 k10 with 350 manual 205 transfer case factory Qjet when im driving and i give it the gas i hear it missing it gets worse the more gas you give it it still has power but i mean you can really hear it missing it idles like a champ but if you rev it up real hard it will miss while idling i tried changing my spark plugs air filter and fuel filter i dont think its my wires because it idles great and idles fine up to about 2000 RPMs just wondering what you guys think it could be thanks

[Irish_Alley]

Have you checked for a exhaust leak. it can sound like a miss or tap

[Lt.Del]

or an exhaust clog, creating back pressure.  Or, check rotor/cap/wires?  it can idle fine and still cause problems w/ higher rpms if rotor/cap/wires need replacing. Gotta replace frequently anyway, may as well do it, if nothing else to rule it out.