Originally Posted by hellbents10

The E-tec 200's from Edelbrock outperform both the GM fastburns and their bowtie iron vortecs.

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Originally Posted by SB

Have you tested these or seen some build ups comparing these heads ?

I've never used the E-Tec's, thus why my question.

Originally Posted by tssteph

Tom,
I have wondered the same thing, what heads could be swapped in and still use the factiory MPI. Keep me posted what you find. I am on my second season so far with the twin 350 mpi pro-charger setep, however I am running 5 psi and stock timing. I have the set and forget it setup and it "seems" bulletproof at this point. Did you make the crownline run at cumberland a couple weeks ago or were your already broke?


You may want to contact Steve ([email protected]) I think he built a couple 383's and used the stock injection as well. Mark at Percision did the dyno work and programmed his ecm's.

Brian

Originally Posted by blowncrown

where can I get Inconel valves for these small block heads?

Originally Posted by blowncrown

Well I got the long block all put together and someone asked me if my Edelbrock heads had Inconel valves.... Not! So here I am asking the advice of the OSO tech wizards, where can I get Inconel valves for these small block heads?

Oh, and does anyone know the # rating of the stock 350 Mag (MEFI III system) fuel injectors?

Originally Posted by cstraub

1.6 Exhaust or 1.5 Exhaust? Head diameter of the valve.

Originally Posted by bobl

Blowncrown, I cross referenced the injectors in your 350 and they are the same part number as the 502 Mag, using the MEFI 3 ECU. So they are indeed 42 lb. REV will custom make a set of inconel exhaust valves for you. I just installed a set in some Whippled 383's I'm building.

Bob