Ok...My 4 port BP is now in my 84 which had an all stock 12a in it and im havin some trouble. So heres whats up-After runnin the engine hard and gettin it nice and hot it starts dieing and gets really jumpy like not all of the plugs are sparking and the only thing keeping the engine turning is the weight of the car. So I pull over and let it sit for a minute start it back up and its ok again. This Started happening two days after i did the swap and got it running. Ill be glad to answer any questions. Any help or guidance would be appreciated.

 

New built OR used engine

 

Steven...I'll answer this one for ya. It is a used engine from his 1979 SA Widebody...

 

Your leading ignition coil might be on its way to the trash bin. Try another or temporarily swap the wires to the trailing coil and see if the problem disappears.

 

Thanks Jeff20B. Ill swap the coil from my 79 into it and get back to you.

haha and thanks Isaac for answering wackyracers question.

 

k i swapped it and its still doin it. do you think it could be the trailing coil? Im gonna go ahead and swap that one too.

 

now im kinda thinkin it could be my fuel pump. I still havent put the pump in from my widebody into it yet.

 

i swapped the fuel pump but its still doin it. This time when it died it wouldnt start again so now im stuck with no car and i dont know whats wrong with it which is pretty sad.

 

Did you ground the plugs to determine if they are sparking? Plugs= wet or dry.
If its wet, assuming that the engine is good, then its flooding. Check your floats.
If its dry, there is a restriction in your fuel line...say clogged filter.

 

thanks Ill check them. I just put my fuel pump in it and it ran good untill it got warm.

 

thats really odd.

have you checked your radiator? does it stay full or are you having to add water alot.
do you have a reliable gauge for engine temps?

 

the radiator just started leaking really bad. Ive only been able to drive it a little bit at a time and the temp gauge isnt hooked back up. Whats really confusing me is that all the plugs are gettin spark and its gettin fuel but its just not firing. Itll start if i hold the pedal to the floor but will run really slugishly and only for a few seconds. HELP!!

 

Have you replaced teh fuel filter, could be clogged after running around the silt gets stirred up.... My 83 would quit and I'd have to let it cool..... the silt would fall to the bottom of teh filter I could run a while longer then it would do it again... probably your filter.

 

I just put in a different filter when i put my pump in so im pretty sure its not that.

 

Ok so I got it running but its running really slugishly and just plain old like crap. Ive fiddled around with some of the wire connections in the ignition and thats how ive gotten as far as i have but now i dont know where to go. ANY SUGGESTIONS? really need to get it running so i have a car to run around in because ive been driven my dads 89 3500 454 dually and the gas mileage isnt exactly impressive. PLEASE!