Whats the stock distributor gear ID?

[bigburban383]

I got a replacement distributor gear from summit racing but it is the wrong size and they dont have the right one at all. He said the one I bought is a .490 ID, but its too big for my distributor. Anybody happen to know the ID? 90' 350 TBI

Thanks
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[dave_90_blazer]

I might have the one you need, do you need a bronze one or steel/cast(stock w/roller cam)?

I have a brand new one steel one at work

 

[bigburban383]

Is it the right size? I dont know what the ID is supposed to be and I dont have a caliper or anything to figure it out. Its definatly smaller then .490