Pontiac Catalina 1966 tuneup?

labbetheking

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I've just bought myself a 1966 pontiac catalina and i'd like a little tuneup.
I got myself a restored 350 engine and was suggested to install a lunati camshaft in it. Does anyone have any suggestions on which cam would be nice for my 389 engine in the catalina?
The "tuneups" i wana make is new intake manifold,carb and headers with 2.5" exhaust.
Is there any headers that fits good or should i just buy some cheap long tube headers and remake them some?

Sry for my bad english but im grateful for some answers.

/Daniel
 

melsg5

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You want a camshaft for which engine, 350 or 389? If it is a 350, is it Pontiac or Chevrolet?
 

melsg5

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The rearend gearing and the type of transmission will greatly effect the cam choice. Use the Lunati web site to pick a camshaft. http://www.lunatipower.com/FindMyCam.aspx

For the intake I would go with an Edelbrock Performer and a Holley 750CFM vacuum secondary carburetor.
For headers you will probably have to go to Dougs since not too many companies make them for your car.
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labbetheking

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Still haven't bought cam,intake or carb.
The headers are on the way getting fitted tho :p .
I really couldn't fill in all the stuff on the link you gave me to choose a cam.
About the intake and carb will this be ok: http://www.summitracing.com/parts/edl-2056 ?
Guess i need to choose a cam with less then 225 intake lobe duration @ .050" lift due to my stock heads?
Is there not anyone who can give me a suggetion for the camchoice?
 

melsg5

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Unless you are having work done on the bottom end, crankshaft, connecting rods etc. your Pontiac will not see anything above 5,500 rpm, so the Performer RPM is a little too much and so is the 800CFM carburetor. In addition look at the rpm range of the cam you selected again a little on the high side. Look at the basic Performer and a carburetor no bigger than 750. The cam should have a top end of about 5,500 max.
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melsg5

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Have you considered calling Lunati 662-892-1500 ? I dont know what gearing you have, I dont know whether you are racing the car or just street driving, I dont know which heads you have, etc. Any cam you pick has to be based upon many factors otherwise you may have too agressive a cam for the rest of the car.
 

labbetheking

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Ye u might be right but my english is kinda bad i think i will a hard time making myself understood.
I got the 092 heads but i don't know which gearing i have.
The car will be used for a weekend driver and i want alittle more "punch" in it.
I just want a cam that fits my setup as good as possible.

How can i find out which gearing i have?

/Daniel
 

melsg5

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This is the reproduction of the Ram Air III cam used in 69-70 in the GTO and 71-72 in the 455HO. In the 400 Ram Air III it produced 366 gross horse power, but you have heads with smaller valves.
http://www.summitracing.com/parts/crn-968781

For a carburetor I would consider this one, it has an electric choke unlike the one you had chosen.
http://www.summitracing.com/parts/hly-0-80770
air cleaner http://www.summitracing.com/parts/sum-g3001
fuel line http://www.summitracing.com/parts/hly-34-150
throttle bracket http://www.summitracing.com/parts/edl-8014/overview/make/pontiac
intake http://www.summitracing.com/parts/edl-2156/overview/make/pontiac

If you have a positraction rear end, you can jack up the back of the car on stands, put a chalk mark on the driveshaft and turn either rear wheel 1 full turn while counting how many times the chalk mark goes around. If the chalk mark turns 3 times you have about a 3.00:1 rear end, a little over 2 3/4 times about a 2.75:1 rear etc.
 

labbetheking

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Thanks for all the help! I will check the gearing on friday
when i get home from work.
Seems like it has come down to only the camchoice now.
 

melsg5

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The octane rating system in the US is different from Sweden and Europe in general. Our system uses RON+MON/2 (research octane number + motor octane number). So with that in mind I would go for the 98 octane assuming you have flat top pistons as opposed to dished which would lower the compression.

http://en.wikipedia.org/wiki/Shell_V-Power
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labbetheking

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Oh ok i didn't know that the octane rating system was different :).
I always tought u guys had so low octane rate when i heard like 91 octane etc.
Think i will go for the 98 octane aswell .. got about the same cr in my corvette engine as i will get in the catalina.
 
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