88 vintage 130, carbs have been rebuilt, timing check good, Idles great (smooth)when first started, but after the engine warms up it runs rough and misses. sputters and coughs intermitantly. I placed my finger over the vent hole on the fuel pump and it seems to help but NOT repeatable?<br />Carbs are checked @ 7/8 turns from soft seat.<br />motor compresson @ 120 +/- 5 psi.. <br />What do you think? 