94 Z28 Camaro starts fine cold but hot kickback sounds funny like timing to far advanced replaced distributor assy. done fuel pressure check about 45 koeoff then drops to about 40 holds for a while pulled fuel rail manually fired injectors with test leads then let set found three that after a while setting they drip so I replaced just three put it back together started off good let it run all day shut it off several times then and the end of the day it done it again. should I recheck the other five injectors? maybe pull fuel rail and again and let set all day and recheck the other five

I would just replace them all eliminate that all together, I could be a bad regulator

I checked the regulator everything ok. Wonder since i replaced them three maybe made others leak ne problems with distributors on the lt1

Heat shield for starter?

I dont thinkit has a cranking problem infact it kicked back so hard it busted the nosecone of the starter i still think it is the injectors but i dont know