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You could drill through the internal baffles with a 3/4" drill bit without removing the rear baffle first. I didn't do it this way but it may be better in that it would keep your drill bit in alignment all the way through all the internal baffles, 5 or 6, don't remember.
After doing it this way then you could drill out the rear baffle with a 1 1/4" metal hole saw. In order to get the benefit of alignment from the rear baffle tube you would of course have to have a 3/4" shank all the way on your drill bit. It could be turned down at the end at a machine shop to fit a 1/2" or 3/8" drill. If I remember correctly the bit needs to be 26" long.
I would go up one size on your main jets and add 1/4 turn out on your pilot screws.
Bill
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03 T100 Goodwood Green & Aztec Gold with Norman Hyde Togas (Classics)
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