Edelbrock vs Stock 455 Intake Manifold

Eric

It's no sweat, no need to apologize. We all do things differently and place value on different things. This manifold thing is a great example. Just keep an open mind about why folks do things :TU: In my case, I run headers too. Why? Because I had broken manifolds, and couldn't get replacements. But headers I could get, and the car needed to run, to take me to work. Do I realise any real benefit? Well there's potential, as you say, it's not a gaurantee! Under 13 seconds is fast in my neck of the woods by the way

 

Ok, Chris & Larry...

OK...That's settled...Shooooouuuu! ou: :TU:
Let's have a Root Beer! :beer or?...

 

If you want to run an HEI with the stock air cleaner you have two choices. Go with the Performer or use a 1" spacer on stock intake.

 

Eric

I presume that's your car in your avatar, very cool car, if I had a car that ran those kinds of times and looked that good I think I'd take my tools to the pawn shop just so I wouldn't be tempted to go just a little bit faster. :bglasses: Going faster is a disease, once you have it then it's very hard to get cured, not that mention that most folks don't want to be cured. :grin:

 

Just found this thread and reckon Ill stick with my stock intake manifold

 

Wow lot of hatred for this intake, and such an old thread!

I bought mine WAY back before we had all this info (and the price got so huge) and have been using it ever since. The choke setup is the old school chevy style, 10.00 (was, anyway) at local dealer, set up like the stock one (of course it doesn't look stock but only a Buick guy would know that and you can't hardly see it anyway), works good. My factory air cleaner does not hit the hood (when I do run it, usually to and from shows) but usually use a 3" drop base open element anyway. The foam seals are squished of course but they are the 350 versions, that's all GM had in the late 80's and I didn't know the difference anyway back then (yes they have made it almost 30 years!). Coolant ports are different, I just ditched the vacuum switch for the carb, used it for temp, and plugged the rear one. I did shim up the throttle bracket as you can see in attached pic. I have been running it like that since the early 90's. There are certainly better intakes out there for the money, but every time I lift that thing off (which is not often) I'm glad I bought it, and it looks more or less stock too, not sure what others you can run factory air cleaner on.

Especially now after 6 months of agony and just having back surgery, I see more aluminum parts in my future. Weight CAN be a reason to buy something

 

wow , glad I found this thread ! was just going to buy a edlebrock for my gsx clone . im now 400.oo richer. but the aluminum orig. copy sure sounds grt. . main reason I wanted to swap was weight. alum. intake makes 455 bought the same as sbc, right? sounds like leaving the stock 70 electra cam might not be bad either . guess I should put my money in to a good carb rebuild .what about the heads . 3 angle and done ??

 

Well.."if" I was pulling the heads for a cleanup, replacement, or even removing the old intake for any reason then Id most probably fit a Performer while it was off.
If I had the spare funds.
Thatd make sense.
IF I was in there anyway.

 

just reinstalled the edlbrk. on my 64 spcl. .was aukwd. at best . would have been lots of fun , if it was 40 lbs heavier . does run good, and much less plumbing!!

 

the weight difference will be unmeasurable in et at the track

 

i am more concerned with my back performance !!

 

Yeah, for that reason only it may be worth it to go aluminum!

 

So the Stage2 package used the B4B basicly for weight savings?
Edit: or was it the only after market "performance" manifold available?

 

All choke problems are solved by poping on an electric one. You also change your wing nutn stud for a tapered bolt. The B4b sits level. The performer is slightly higher on the secondarys. Like a high rider. Yous a drop base aircleaner. The stock manifold is old tractor iron. Its good for stock. Or an anchor.

 

I read earlier that the heat crossover Tubes should be blocked if putting on an aluminum intake as it will cook the intake? I know the benefits for racing but is it absolutely necessary to plug them for an aluminum intake and keeping the iron heads?

 

Mine are not plugged. No issues in 20+ years, runs like a champ. Iron 1970 heads.

 

If Buying a new B4B from TA . And putting on a QJet. Are there any tricks that you guys do to that middle divider in the intake under the carb? Thought some guys were cutting out the back part of divider? And smoothing up with a dremel. Or am i crazy?

 

You can take the divider down 1/4 to 1/2”. I only did about 1/4”, If i recall you lose a little low end torque and i didn’t want to lose that on my near stock motor

 

This is on a cast iron intake. Allegedly 8-10 hp gain. Debatable.