high flow catalytic converter

[mooseboy84]

I am looking for recommendations for a high flow cat (or maybe just a regular cat?)

I have a 69 longbed with dual straight pipes and glass packs, 2.5". I just cant take the smell of the exhaust when idling and driving around anymore and need a cat on there to cut it down. I dont think I am running too rich and actually bought a A/F guage I want to install at somepoint to fine tune carb, but will install it at a later date. I have a stock 350 crate engine (260 hp rated) so nothing fancy.

Can anyone recommend a set of cats I could install? Is there any benefit, or should I say, would "high flow" cats be better and rob less hp, or would a regular truck cat be ok?

Oh, and to make it all the worse, I am in California which already I know I cant order half of anything online dealing with exhaust.

Thanks