4.3 (non vortec) high performance parts

[McBroom]

Fixin to rebuild my 91 4.3 V6 engine. Where are the better places to find high performance parts Jegs has alot of the stuff but I'm also looking for other vendors as well.
Mainly for the hard to find stuff...
Chrome goodies,headers,the correct electronic distributor,largest clutch pack I can use(5 spd man)4x4

Thanks.
I'm also interested in any hacks that may be out there too.

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