Originally Posted by SB (Post 4851442)

As an fyi: Edelbrock got bought out not too long ao. Same company that bought out CompCams. There's some useless facts for the day. :)
Actually maybe not that useless, as I don't think Edelbrock does all, or much, of their own castings in house now because of this.

Originally Posted by Rookie (Post 4851866)

Hmmm, Just uploaded...
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Originally Posted by SB (Post 4851876)

Okay, checked the source (Edelbrock ) and this is the deal. Sorry for my confusion. Doh !

https://www.motortrend.com/news/edel...ssissippi/amp/

Lots of moving around and companies being bought.

“After 83 years in Southern California, Edelbrock Performance begins a new era in 2021. The historic aftermarket performance parts manufacturer is moving its headquarters from Torrance, California, to Olive Branch, Mississippi, just south of Memphis, Tennessee. One year ago, Edelbrock and its Russell Performance division joined forces with the COMP Performance Group, which is based in Memphis. In addition to Comp Cams and Edelbrock, the group includes TCI Automotive, FAST Fuel Air Spark Technology, Racing Head Service, ZEX, Inglese Induction Systems, Powerhouse Products, COMP Vthunder, and COMP GoParts.

As the Edelbrock administrative offices relocate to a 300,000-square-foot facility, most of the manufacturing processes will transfer to San Jacinto, California, the site of Edelbrock's aluminum foundry. A new Edelbrock Southern California Tech Center is scheduled to open in Cerritos, California, at the end of March.”

Originally Posted by SB (Post 4851871)

well, thank you. :thumbs Great vid. And yes, vid was just posted.
I Must have heard improper info about the foundry.

Psst: vid showed a bunch of xf efi manifolds in a pike, hopefully for people looking for one in this thread get one soon.

Originally Posted by articfriends (Post 4851849)

Heres some info:
A 525 uses the same EXACT injectors as a mefi1 454/502. I have found a 55lb import injector that I sell as match flowed sets, its slightly shorter so I machine bottom spacers to ensure it is in rail enough BUT your stock honda/keihan factory ev-1 connector injectors IF they flow fine will be just fine, I wouldn't change them unless when cleaned and flow tested they are terrible. I flow and clean alot of early 454/502 injectors and 525 injectors at my shop and for most part they clean up and flow fine.
Injector SIZE : your stock injectors are 48 lb, 48 x 8 is 384 lbs per hr at 3 bar (43.5 psi). 384 x 2 =768 , if your bsfc was .500 that means they would support 768 hp, assuming your bsfc is closer to .58 which is typical of mpi engines I tune and dyno you can deduct 16% from the 768 which would still get you to 645 hp maxed out. Even at 80% of that, it will get you over 500.
Stock fuel pump: stock fuel pump is 190 lph, its done at about 560 to 580 ft lbs tq/hp before injectors are.
Upgrade fuel pump/efi regulator /fuel cooler lines: IF your going to aim for more hp than stock fuel pump can supply and you upgrade it, you can got from 3 bar/43.5 psi to 4 bar/58 psi.
58 psi will increase the flow of your injectors by 15%, that 15% will take your max hp easily to 600 hp at 80% duty ccyle/.58 bsfc. I have pushed stock injectors close to 100% duty cycle over 675 hp with no issues.
Wideband/02 sensors somewhere in your current exhaust: If you do ANY mods, regardless of intake, etc, a wide band 02 sensor somewhere in your exhaust that you make tuning decisions from will keep you from running pig rich somewhere OR making pretty little piston ashtray gifts for your smoking friends!
Mpi Intake: I have made well over 600 hp/600 ft lbs of tq with mercruiser black intake by cutting down runners even with plenum floor/boring out TB and making 67 mm blades vs stock 60.
Flame arrestor: The flat plate gen 6 FA is a restrictive hp killer on modded engines
the Gen 5 mefi 1 factory fa is BEST flowing factory piece, those aluminum necked down adapters with clamp on KN fa's from various suppliers flow WORSE than stock and kill massive hp on modded engines
In recent testing I found the Gaffrig oval FA is by far the very best
Throttle linkage on edelbrock proflow (assuming you could actually get one), You put a throttle post thru side of their curved lever and make a bracket to bolt on side of intake, Ill post up a pic if I can find one.
Your boat in picture: Since its a single and doesnt appear to have sufficient room to put a large enough FA on the proflow, I wouldn't even consider it. A 90 KILLS a bunch of the hp gain that its known for. A proflow will embarrass a vic jr with a modded tb and good air flow but most that gain will evaporate if you clamp any 90 onto it. A merc mpi long runner intake will beat both a vic jr and proflow in early tq due to runner length at expense of top end hp but singles unless they are really a fast, stepped hull need square tq/hp. Guys get caught up on peak hp numbers that come from big cams, short runner intakes that sacrifice torque. Then boat sucks to drive, wont pull no prop. wont get on plane loaded down etc. If I think of anything else to ad I will, Smitty