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Old 06-04-2006, 01:21 PM
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Originally Posted by boneyard Buick
Hey guys
i know for a fact that a 305 TPI needs 14psi minimum to run properly...
More like 38PSI for a TPI (Tuned Port). 14psi is for a TBI (Throttle Body) injection which is what you may be thinking of.

Its very possible that the pump for the 2.8 multiport provides enough flow and pressure for the injection.

I am running my TPI with an external pump that can be used with both a mid 90's ford 4cly injection and for the 5.0 litre injection.

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