So, first, I want to say thanks C8WE for posting apples to apples
Second, I want to say clearly that I am not advertising for TFS, because in the past I have not been a TFS fan and actually in their early days fixed quite a few cases of carnage from their bad SBF and SBC heads, but it has been a long time. The specifics of quality will be important to me. (
valve job, flow, springs and valve choice, rocker threads, intake and exhaust threads, chamber size etc)
Let me put that in other words though, saving 600 bucks won't help if a seat falls out, valve heads breaks, or guide breaks all jamming parts into the cylinder or cylinders. In the late 90s/early 2000s, I saw all of those. That was a long time ago though so would like to see the difference
Third, I feel a bit of loyalty to our FE friends and suppliers on and off the forum, and even to Edelbrock for heads, intakes, and even EFI stuff now, so let my comparison be a way to look at this with numbers, and realize if given a close choice, for big power and better parts, likely I'd throw money to our forum guys who likely would build a higher quality head with tighter machining standards
That being said, the TFS, if you compare it against ADVERTISED BBM cost (suppliers feel free to chime in if it's incorrect, this is from BBM's site and seems high to me) the TFS looks pretty good as it slightly outperforms the stock BBM and costs less. This is using the same bench information from C8WE, NOT TFS advertised numbers
If you compare it against current ACTUAL prices on Summit against an Edelbrock, it's a significantly better deal IMHO. FYI - Because I didn't have the same bench for the Edels, I used STan Weiss's site and used the ones I liked best for a stock head. However, the difference is great enough that I do not think you could get an Edel there for the cost difference.
To me, I think that ESPECIALLY if the quality is good, Edelbrock should be ready for a decent hit. See below