JWW, we sell the JBA brand shorty headers. They have a nice thick 3/8" mounting flange and beefy collector dome which helps reduce deformation helping them seal. With a 302, there should really be no fitment issues. You may have to do some maneuvering with your dip-stick though. They have been great headers for us. We have seen copies of them out there, where the head flange is thinner and maybe a couple other differences, but that one stands out. I'm not sure of the specs on the Toms headers and not having seen them personally, I could only speculate. Hopefully others will chime in.
Matt