so after replacing the timing set in my 81 Bronc i found that i have no power. So i replaced the clogged EGR plate and now all the truck does is backfire. So i put another carb on it and the same prob

 

compression test and check your timing again. I hope you lined up the marks on timing chain perfect.

 

yup the timing marks lined up bang on

 

Sounds like your ignition timing is off.

 

I've had my distributorin/ out on mine a few times and the only real time I had dramas was either A: I was 180deg out when I re-installed it and,
B: reset all timing marks after fitting cam, but left all the spark leads as they were. I had marked them. Consequently I was 1 cylinder off in the timing as the PO had phased it that way so the vac advance cannister was in a better position to time it. Rechecked it and put leads in correct order and was fine. Flattened the battery trying though

 

thanks ill try messing w/ the dist on the 2nd of Nov

 

kay so there seems to be more probs deep down. so I'm just going to pull it. I have another mod lined up just gotta get a job to buy the trk and to really set me in a pissy mood snow has started to fly in Saskatchewan

 

i had similar issues finally traced it to the ignition coil, bad connection with the horseshoe style clip connector, changed it out for a gm style with posts cleared it right up