454 carb thunderbolt IV... timing all over??
06-17-2013, 08:32 PM
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454 carb thunderbolt IV... timing all over??
I set my total advance at 34 degrees...... after around 4000 the timing jumps all over the place, I cannot remember if this has done it with multiple boxes since I have so many different issues to figure out....I have new coil, and new pick up, I am trying to find another ingnition module but I swear it did this with 2 different ones......
I am also thinking of ditching the merc ignition and going with something else....
What would be any other suggestions? this engine is very sluggish to go from 4500-5000 takes a minute catch up... does not feel as strong as port goes right to 5000
I am also thinking of ditching the merc ignition and going with something else....
What would be any other suggestions? this engine is very sluggish to go from 4500-5000 takes a minute catch up... does not feel as strong as port goes right to 5000
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06-18-2013, 04:08 AM
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I run new small module on that engine, a old box on other one, I have a buddy with a few extras, I plan to grab one from him to use..... the connections are good as well as I ran new ground from battery to be sure...
