I just switched from a 305 to 350 TBI in my 91 RS. The 350 came out of a 91 P/U and was wondering if I need to change the EGR valve to one that came on the P/U?

 

you shouldn't as long as the EGR's are the same style, i think there's positive backpressure (or something) and another style..

either way, it has to be the same as the style originally in your car, so you should be able to put your original one back on if you're not double sure which one to use

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