Looking at Dougs B body headers HELP!

From what I've read over on bigblockdart.com is all the headers need pounding EXCEPT TTi's..

Do you have power steering? I do not.. I just watched the Crop Duster Roadkill episode and they basically wrecked a pair of TTi's trying to fit them in a P/S car..

I also have big block isolators, which are 3/4" taller than the Schumacher/Trans-Dapt small block isolators

I also have Hedman B body headers that are pretty beat up - I will be defaulting with a new pair of those