Stillen Air to Air setup

Z&I

It's physically larger so it isn't a straight swap.
I considered this option as well.
IMHO It is also overkill for a stock motor.
There used to be a sponsor [Bobby] who put one in for a customer [can't recall the name of the shop at the moment]
He designed his own bracket and charge tubes in order to get it in.
The bracket was mounted much lower and the arm was shorter to reduce bracket flex.
The charge tubes were of unequal length
Unfortunately he never offered this to me as a product I could buy.

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BB