ok i have a 250 chevy block had under 60k (miles) on it
i have a circle trach head (big valves, big ports and its milled as well)
R.V. cam
GM H.e.i ignition
offenhauser intake (4 barrel)
holley 390 cfm
and split exhaust manifold with true dual exhaust
and an automatic transmision(power gulide)
the motor runs like crap, shakes at an idle
i set the idle to 600 rpm i put it in to gear it stalls up the idle to 700 rpm same thing (idle set in park)
also when i try to set the timming theres an "A" and an "0" i assume a= advenced and "0" is 0* ???
there is no wat it will run withthe timming set in between the "A" and the "0". the timming on the "A" it will run its best (still shakes)
i have checked the plugs - all are firing, but look sooty)
help please its driving me up a wall
thanks
