well i hate to say it but i searched and what i found for engine pinging is the engine getting ready to **** the ****ing bed

well heres what i have done to it off the top mof my head sure thers more but i will say what i got

knock sensor , fuel pump+filter , starter , tbi unit , plugs , wires , dis cap , all and ever sensor , injectors(55lb) , fuel lines ,

now my car starts rough i will addmit that every gear head i know is stumped on why it takes 3 different key turns to fire it up but it does , and when its hot and turn it off turn it on few sec laters it takes 2 (should only take rev rev boom on) . so that was the focus on me messing with my engine which is a 305 tbi (stock 89) but recently its been doing alot of pinging when your RPMing up and gear changing and you cant realy get on it any more from that , i am doing my timing chain and gears and seals tomarrow or at least by friday and i am pissed that my engine might be going to hell with how much money and labor i put into it(around 2 grand had to bring it to a shop and have the top dogs do it casue i couldnt so like 1.5k in parts 500 labor) after i have my timing checked out i am going for an engine compresson test which hopfuly will come up good casue a budy things thats my prob , but this is the last starw for my car , i aint putting no more into it , if it turns out my engine is going bad i am gonna run it as is and wait to buy a new zz4 engine with a th350

any suggestions help i am about to go base ball batty on my hood

 

What do you mean by "grinding"?

 

its making a pinginf noice found by what sounds like a grinding noice from the engine , i know its not the tranny casue it was pulled from a new working camaro my budy parted out last year and has been on the car for about a year and no probs with it and everything checks out with it

 

Pinging is usually caused by too much timing. It doesn't necessarily toll the death knell for your engine. Have you checked the timing with a light?

Edit: Just saw you typed that you haven't checked it yet.

 

when i first got it it was fune i had a budy who happene to still be in the shop just check it now its skipping 1 which if i remember corretly is the firing of the engine