manifold/headers
Thread Starter
Intermediate
Joined: Jan 2012
Posts: 45
Likes: 0
manifold/headers
have a 72 with stock 200 hp motor and auto trans,would like to increase hp with new intake manifold with my rebuilt Rochester carby and new headers,can someone recommend a manifold and headers to suit this car and to fit under the hood Thanks Alan
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
The Edelbrock performer intake is hard to beat for a stock motor. As for headers any brand with 1 5/8 tubes and a good free flowing exhaust with good mufflers will help. I have used Hooker Comp headers and they fit well and have good access to the plugs.
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
Next you got to decide if you want long tube or short tube for headers. Lots of opinions on that. do some google searches and see what meets you needs best.
In either case I would get them ceramic coated to keep under-hood temps down if you can afford it.
In either case I would get them ceramic coated to keep under-hood temps down if you can afford it.
Thread Starter
Intermediate
Joined: Jan 2012
Posts: 45
Likes: 0
Thanks for your replies,all the best from down under Alan
Le Mans Master
Joined: Oct 2010
Posts: 6,937
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
with headers the intake will have more benefit. get Lars' papers for timing and carburetor set up. then look to heads and cam.
on later model engines im not a proponent of a cam change without some type of upgrade in the cylinder head department, thats where BIG things happen power wise.
on later model engines im not a proponent of a cam change without some type of upgrade in the cylinder head department, thats where BIG things happen power wise.
Race Director
Joined: Aug 2004
Posts: 10,628
Likes: 132
From: Duvall, WA
Drifting
Joined: Jan 2011
Posts: 1,853
Likes: 81
From: Hamilton Virginia
Edelbrock performer and long tube hookers with a better flowing exhaust and mufflers. You should see anywhere from 15-25 hp difference. The intake and exhaust manifolds weight less than stock, almost half. That helps also. Then if you want a bunch more hp, change the cam and heads.
I just added a performer to my vette. along with the hedman sidepipes I already had, I can notice a difference over stock.
I just added a performer to my vette. along with the hedman sidepipes I already had, I can notice a difference over stock.
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