well i went and got my car dynoed today and it dynoed 254.7whp with and 4500+ rpm miss on one cyl. it was climbing hard but when it would have hit the power band it started missing on one cyl....so i guess 254.7 isnt bad for 7 cyl....i think the porcelain is cracked on one of my plugs....im gonna change them tomorrow prob. what do you all think

 

Post up the dyno graph.

 

i will as soon as i can get it scanned!!!!

 

Check the plug wires carefully also.

 

Did the shop you took it to take a few minutes to try and find the problem? If not, that's a shame. Was it just one pull, and what did they charge you.

 

i done two pulls, but the car was too hot to find the prob. there were people waiting in line, 75 bucks 4 3 pulls usually