Anyone have technical data -Edelbrock Street master 440

Hello, I have an old Edelbrock Street Master 440 intake and I would like to know what the RPM range was of this intake..and weather it is a good one for a rebuilt 440 30 over engine with 9.5 to 1 comp with a Hyd. cam someplace around 474-500" lift with a 270-280 dur @50
3:23 rear gears with a 727 automatic transmission with a stock/HP converter

Hmmmmmmmm runners are curved like the fantastic Holley Street Dominator and not straight like the vintage Torker. Sorry I do not have any usefull info but- If Eedelbrock was copying the Holley SD that shoud be a great manifold up to 6000rpm.

Visually it looks a lot like the Torker 2 intake, but with a thermoquad flange and I think it's got the smaller runners of the original torker intake. One thing I don't like is the way the carb bores transition to the plenum/runners. Looks like a lot of blockage there...?

I agree it looks like a blockage that I would think you could cut with a die grinder and smooth out that area.

This is the intake I am using on my motorhome project. So far ... I like what I have experienced but because of the gearing(4.56) .. the motor is singing about 3200. When I eventually get a shorter(3.73) gear ... I will probably try an SP2P.

That "blockage" in the four-corners of the carb opening? .. that HAD to be designed in-there. I think the intake was designed MORE FOR a fuel-econ HP application. Now if you removed those "corners" .. it would probably be a better higher RPM piece.

I was meaning to get a couple of older magazines to get their "tests" on these intakes .. but no luck so far. I called Eddy some years back and asked them some basic tech-data on these two intakes .. they were of ZERO assistance.

You can try it but I believe the stock, iron intake will perform better and be more tractable. These SP2P and Streetmaster intakes were single plane, low RPM intakes. A dual plane will be more flexible in that application.
Anyone I ever knew that wasted the money on these intakes in the 70's and 80's quickly took them off and put the iron ones back on. There is a reason the Holley SD and CH4B remain popular to this day.

Sheldon

Sheldon .. the SP2P is a dual-plane intake.

And as far as wasting your money on these ? ... If you truly feel that way ...and have a couple of these laying-around - gathering-dust .....I will BUY every one any one has.

Well, the ports are alot larger on the streetmaster intake than an SP2P intake. I think it was modified a little just under the carb flange it would work alot better for sure.

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Well, the ports are alot larger on the streetmaster intake than an SP2P intake. I think it was modified a little just under the carb flange it would work alot better for sure.

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Roger that .. the ports on the SP2P are big-time smaller ... for better fuel atomization.

If I put a shorter gear in my MH ... I could probably benefit MORE with the SP2P.