surging and idling problems
 

My car has problems with surging and idling problems that I cannot get rid of. The motor is a 306 with 10.5:1 comp, trickflow heads, trick flow cam (286-294\.583-.605), trick flow intake, 70mm throttle body, 73 mass air, 30 lb. inj, and a cobra computer. Are my injectors too big? The car is very fast and runs great through the higher rpms but lacks on the bottom end and won't idle. I have the air adjuster on the car but doesn't help. when considering the airflow needs of the car remember that I am at 6000 ft above sea level. i appreciate any help.

tps .99 myth or not
drill a larger hole in throttle body plate
possible vacuum leak
ive yet to find the idle screw

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88gt gt40 irons mill/port, ported up/low efi,mac longs,1.6 rrs, crane fpr,fms a/c elim,dynomax s.t.,190lph,weld rims, bfg drs,3.73s, parts in limbo 24# inj and compcam .533 lift, 73 c&l mass
82gt 351w in limbo
89 4 cyl notch in limbo