[vettestr]

Hey AZford,
How about a side bet for 5 bucks, payable on the next run we see each other? I bet your stumble is a timing issue. I bet your initial timing is too low and increasing initial timing to about 12 to 16 degrees will make the stumble go away.

If the initial is in the 6 to 8 range now then increase to 12 degrees .... increase a little at a time up to a max of 16* if she will take it without pre-ignition or pinging. If the new timing takes the stumble away then you need leave it there but then check the total timing. You may have to restrict the mechanical so total is more like 34* to 36* total timing with the initial bumped up to 14ish.

Check you initial timing as it is set up now ..After you take the bet for a fin of course and let me know the outcome. Jeff C