Knock off Performer RPM

[1968galaxie]

The Chinese "copy" is a better casting than the one they copied.

[Joe-JDC]

Those first Stevens/ProMaxx heads were so light they felt like they would float on water, and the valve seats would move under presure.  The later heads are better and heavier/denser.  There have been Edelbrock heads flowing 345+cfm for the last 25 years, with custom/Stage III heads flowing over 360 cfm.   There is a distinct difference in parts made in Taiwan and those coming from China in quality.  I don't want to get into an argument, but Edelbrock does cast a better part.  Joe-JDC

[blykins]

The Chinese "copy" is a better casting than the one they copied.

Have you seen a set in person?  I have. 

ProMaxx wanted my cylinder head business, so they sent me a set of FE heads and a set of SBF heads to check out.  I looked at them and then shipped them back.  It's the principle of something being directly copied in order to sell them cheaply....i.e. ProMaxx, ProComp, Speedmaster, etc.  ProComp/Speedmaster did that with MSD, CHI, you name it, and all of their stuff is junk. 

As Joe said, CNC/hand-ported Edelbrocks have been going to 360-380 cfm for years.  Nothing special about a 345cfm FE head with a 2.190" valve.  A Trick Flow head is pretty much there, but with a much smaller port.

[1968galaxie]

I didn't imply that 345 cfm was "out of this world".
Hand ported aluminum heads can get there.

You guys seem to love Edelbrock - fine with me.
I was just pointing out alternatives.

Too bad Edelbrock is made of unobtanium.

For the non believers I just looked - $750.00 Edelbrock Streetmaster: https://www.ebay.com/sch/i.html?_nkw=ford+390+intake+manifold&_sop=12&mkcid=1&mkrid=711-53200-19255-0&campid=5336728181&customid=&toolid=10001&_pgn=2

[blykins]

There's a lot of stuff made of unobtanium these days.   I don't know what's going to happen with the industry. 

[Joe-JDC]

Edelbrock does casting for other head manufacturers, not just their own logo.  They are busy trying to get caught up from the move from/in California, and the pandemic lockdown that was a disaster for this country.  Joe-JDC