Anyone have any experience with these throttle bodies?

got a 70 mm bbk works fine id say go with the bbk def worth the money

Got a BBK 70 mm TB as well. No regrets thus far.

That TB on Ebay may be a MAC unit. they are cheap but work. my bud bought one for his 5.0 and we never had an issue with it. the Quality of the piece may not be top notch though. MAC has never been known to make a quality product..........more like affordable enough for people to try.

that would be a mac from the looks of it , I am thinking the only measure 73.66 mm though not sure about that measurement read it somewhere , they dont make a 70 and a 75 ...dont know why , but anyways , spend the extra money on the accufab ... I was going to get an edelbrock made by BBK myself but they were on back order with no release date when I ordered mine , Accufab is TOP NOTCH QUALITY bar none ......