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SAI utilized both 48 IDM and 48 IDA Weber systems on the engines they built. Both systems were very tunable for small block Ford applications and can be used on bib block applications as well. 48s have als been used successfully on four cylinder VW and Porsche engines as well. I know of several stock to mildly built Ford small block engines that run 48 IDA Weber systems. Yes, the 48 Webers might be challenging to properly tune but the performance gain once dialed in is awesome!
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