Manifold search

[undy]

You need a medium riser to match your eboks. I don't believe that manifold will work for you. It's a 427 sourced low riser. You'll have to epoxy the bottom of the ports the get any kind of match. Your performance will sufffer too, especially with that 482. The medium risers came about in 65, if I remember correctly. Get one for the dual quad "WOW" factor but at the expense of quite a few ponies.

Dave

[BOURRET]

Originally Posted by undy

You need a medium riser to match your eboks. I don't believe that manifold will work for you. It's a 427 sourced low riser. You'll have to epoxy the bottom of the ports the get any kind of match. Your performance will sufffer too, especially with that 482. The medium risers came about in 65, if I remember correctly. Get one for the dual quad "WOW" factor but at the expense of quite a few ponies.

Dave

Thanks for the remarks.
The height between the bottom of the manifold and its maximum height is very critical, I think I have about 1/4 inch clearance available!!!
My actual (porous C3EA 9425) had been carefully re-worked three years ago to match the Edelbrock performer cyl. heads.
What would you see to save the "ponies" ? Switch to a big single quad carb???

[undy]

Originally Posted by BOURRET

Thanks for the remarks.
The height between the bottom of the manifold and its maximum height is very critical, I think I have about 1/4 inch clearance available!!!
My actual (porous C3EA 9425) had been carefully re-worked three years ago to match the Edelbrock performer cyl. heads.
What would you see to save the "ponies" ? Switch to a big single quad carb???

Depending what manifold height you have available you might not have enough room for even a good flowing single carb two plane, much less a single plane. I'm running a Blue Thunder 427 MR on my KC Pond 482. Keith said that it would flow well for my application (Stage II CNC'd eboks, 11 to 1 and 240/250 @ 640 hydraulic roller) It's actually about 1/4" taller than the Performer RPM. I'd like to switch to a Super Victor but like you am space limited for that height. What's your max clearance measurements, manifold base to carb pad height (front and rear) Blue Thunder does make a medium riser dual quad set up, not knowing if it'll meet your clearance requirements. I like the Blue Thunder manifolds as the are fairly accurate clones of the OEM stuff, with flow enhancements too.

Depending on your setup, probably +/- 20 hp drop... maybe more, on running a low riser.

Dave

[BOURRET]

Originally Posted by undy

Depending what manifold height you have available you might not have enough room for even a good flowing single carb two plane, much less a single plane. I'm running a Blue Thunder 427 MR on my KC Pond 482. Keith said that it would flow well for my application (Stage II CNC'd eboks, 11 to 1 and 240/250 @ 640 hydraulic roller) It's actually about 1/4" taller than the Performer RPM. I'd like to switch to a Super Victor but like you am space limited for that height. What's your max clearance measurements, manifold base to carb pad height (front and rear) Blue Thunder does make a medium riser dual quad set up, not knowing if it'll meet your clearance requirements. I like the Blue Thunder manifolds as the are fairly accurate clones of the OEM stuff, with flow enhancements too.

Depending on your setup, probably +/- 20 hp drop... maybe more, on running a low riser.

Dave

I will go to my garage this evening (it is a few miles from my home) and I will make the measurements. I never looked at Blue Thunder until now but I am interested by your set up which seems excellent. A Blue Thunder dual quad could be the solution.
Thanks again!!!!.

[undy]

I couldn't find the specs but here's a pic..

Dave

[BOURRET]

The flow is very likely different from the FE C3AE9425H just looking at the openings in contact with the carburetors. It would worth trying.