I agree on the injectors.

Old injectors lose several things over time/miles

Pop pressure drops as does the quality of the spray pattern.

Likely you have some injectors that are popping at way too low of a pressure and are squirting a pee stream instead of a nice fine mist in a cone pattern.

Give JOHN KENNEDY A SHOUT


What I do is have a local shop that does topnotch work build me a set, and on an older rig I usually set the pop pressure towards the lower end of spec to avoid issues that can arise from an injector pump that has seen many miles and it's pressure ability may be a tad lower than optimal..

This CAN help with hot no start issues due to internal leaks in the plungers.

STAY AWAY from ebay on this stuff....

Good luck