promaxx small block heads.
Thats what i seen in jegs. Look comparable to the Edelbrocks. Also seen the victor jrs. From hughes but looks like a copy of the w5s. So they probably wont sell very much.
I would hope, that the Edelbrock team did some homework. Reviewed history, made corrections/upgrades over the W5 head. There RPM castings appear to be very good. I have not heard of any reports of poor castings.
This in itself I think will allow the head to sell. Cost is the kicker. I'm not complaining though. Just saying I dont have that kind of scratch.
It is a royal shame the W5 heads have a bad rap due to poor castings. The head, if it is a good head, could be very well ported out for some pretty good numbers and a decent flow curve. My first set didn't do so well, though they did port out well, just not as far as I hoped.
I remember a certain Duster on Pinks all out running 9's with W5's, a manual trans & a tunnel ram.
Another Edelbrock knockoff...
That is what I was thinking but IIRC, those that have ported the heads found a better set of ports to grind on for better, higher flowing ports. *I think* MRL has worked on said heads. Perhaps OU812?