Ive been looking for these heads but can't find them through my searches. I read a couple years ago in a GMHTP mag that RHS made vortech heads for SBC 305's that don't require the use of a vortech intake. Does anyone know who sells these? If not ill just call RHS next week and post up what i found incase anyone else is interested.

id also like to see about this, i have a set of 305 vortec heads, but no intake and the cheapest i found is around $400 to my door but id love to replace my swirl ports or smog heads in favor of vortec

From the research I've done your best bet is to get the 350 heads and mill them down. Try that out.