Edelbrock question
Thread Starter
Racer
Joined: Dec 2007
Posts: 445
Likes: 2
From: Thomastown Mississippi
Edelbrock question
1977 Vette/stock 350 L48. When I bought my Vette last April, it came with headers/dual exhaust, a Holley carb, and Edelbrock Streetmaster intake manifold. Since I've owned it, I've installed a new 600 Holley carb, new HEI distributor and Accel high output coil. It ran OK with the old stuff, but I figured replacing a few 30 year old parts can't hurt. It does seem to idle better now, with the new ignition. The part I'm concerned with is the intake manifold. From what I can find on the internet about this Streetmaster, it was developed and sold in the 1970's, and no one seemed too thrilled with it's performance. Edelbrock list a Performer EPS intake manifold in their catalog (part # 2701). It recommends running a 500-650 cfm carb with this manifold. Do you guys think this would be a good combo with my Holley 600?? Anyone running one of these on a stock (except for headers and duals) 350?? My local AutoZone has these manifolds in stock for $132. Just wanted to check with you experts before I buy. Also, do you think it would be a noticable improvement over the old Streetmaster that I'm currently running? Thanks for any advice.
Kenny
Kenny
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
Edelbrock's Performer EPS is an excellent intake, but it's design is optimized for their own brand of square bore carburetors. If your Holley is a square bore it will still work fine.
Is the Streetmaster a single plane or dual plane intake? If it's a single plane, a dual plane like the Performer or EPS will give you better low end and mid-range for some sacrifice at the top end. A single plane gives better performance at higher rpm's at some sacrifice in idle quality and low end performance.
Is the Streetmaster a single plane or dual plane intake? If it's a single plane, a dual plane like the Performer or EPS will give you better low end and mid-range for some sacrifice at the top end. A single plane gives better performance at higher rpm's at some sacrifice in idle quality and low end performance.
Melting Slicks
Joined: Aug 2003
Posts: 2,135
Likes: 2
From: Dayton Oh
I'm running the EPS on my 355 with a Holly 670 SA carb. Excellent combo IMO. I did take Lars recommendation and bumped up the jets on the SA, especially since I went with headers and duals. Without checking my documentation, I recollect I'm now using 68s or 69s on the primaries and 76s on the secondaries. When I went to the SA I did have a rough, cold idle problem until changing the jets. Anyways do a search and you'll find the jet articles.
