i'm pretty sure i have it narrowed down to no spark but not sure of a way to test it. any one know a good way to test for spark, and see exactly what componet has failed?

the car is a 89 350 tpi pretty much stock. new plugs and wires with about 500 miles on them, but the rotor, cap and coil i have no idea how old they are.

 

got a old plug,pull a wire off at the plug on motor,attach old plug and sit it somewhere u can see and turn it over and watch for spark

but if you changed the plugs and wires(which is a pain the the *** on those cars)why didnt you changed the cap and rotor

 

thanks i will try that

i just bought the car with the plan of an ls1 swap, so i dont want to put alot of money into the l98, and the previous owner bought the plugs and wires for it but just never installed them, and i decided to install them when i had to do the intake gaskets. i just want a running car till i have enough parts to start the swap

 

Plug must be grounded to work!

 

well i grounded the pluh on the intake manifold and got no spark, i replaced the coil and still nothing. i got a cap and rotor but havent replaced them yet, anything else that could possably cause it?