Upgrade from 87mm to BBK 90mm throttle body

[Ebm]

I bought one, when doing my supercharger install after having been recommended the Ford Performance 90mm by edelbrock, i figured 90mm was 90mm you know? Lund outright refused to tune it and said "They cause drivability issues, stalling , bucking, surging etc " so I had to return and buy a Ford performance one instead which has been flawless.

Then there's american muscle reviews, these are just from the first page
https://www.americanmuscle.com/bbk-90mm-throttlebody-1516gt.html











I appreciate there are others who say they've not had problems, but lund refusing to tune it is enough to convince me to spend the extra on the ford performance one.

Can confirm. Have had a BBK throttle body on mine and it bucked and surged a lot. Had to turn up the idle speed 200rpm from stock to keep it from stalling every time I came to a stop. If you care about drivability at all, stick with the stock throttle body. If you do anything just get your throttle body ported.

BBK longtubes are fine. No issues there.

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