Tony-I have an Explorer pump w/ a cut spring and Heidts valve.This is not perfect.There are times in parking lot situations where the boost is a little low( no where as bad as NO assist though).But, if I crank up the assist w/ the Heidts,then it gets light at speed.Most modern cars have some way to automatically vary assist w/ car speed to avoid this situation.I think we are just going to have to accept it as it is.
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FFR 5353K,351/400hp,TKO 500, 3-link w/3.08 and Truetrac, Koni DA coilovers front and rear,APE hardtop,Forte front and VPM rear swaybars
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