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When I first built my R3 W-9 it was on gas and it never
had any heat issues(it was a drag race only car)...
what will the engine be used for... I did drill and
tap the top centers on each side of the block but never
needed any more cooling and when I switched over to
E-85 I had to run it in the lanes to keep the temp up

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this is drag race only on gas W7 heads

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You wont have any problems... just put a radiator
in the car

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