Brick in question is an 85 K100 2V.
Usually fine up to around 4k RPM, then I get some hesitation under part throttle if cruising or slightly accelerating. Can most of the time power through it, on up the RPM range at full throttle. Every once in a while, it will stutter all the way up.
Just looking for the next logical step.
I've changed the plugs and wires, and coil checks good to specs. Taken a torch fuel bottle and sprayed around the throttles and other rubber to check for a rise in idle (none).
I have recently replaced the FI computer and the AFM.
Next on my mind is the fuel filter. But other possibilities I can think of, and/or read about are injector reconditioning, FPR and lines, coolant temp sensor (may be getting rich/lean mix if this is putting out wrong resistance, I believe), and possibly attempt a TB sync.
Anything else I might be forgetting, or other opinions on what to tackle next?