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I don’t know about any of what you just said. It all seems kinda unlikely.
If the meth was coming out the intake gaskets wouldn’t it still report lower iats when flowing? Even if the intake gaskets were leaking I don’t think that would let all the meth out. How does a leaky rocker bolt get oil up into the intake port?
What does your crank case ventilation look like? One of my precision turbos develops a turbo seal leak every now and then and that puts oil into the intake track and out of the bov, it puts a fine mist everywhere.
Where is your meth nozzle? Does it have a check valve up near the nozzle?
I am 99% sure they have a cnc program for drilling the lt1 bolt holes in the lt4 heads. I don't think this is a new procedure and the bugs are likely worked out.
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