Thread: Weird thing done to 305, what cam is it?

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2.5" exhaust and disc brakes up front

Originally Posted by techinspector1

Reminds me of Johnny Carson wearing the turban and holding an envelope up to this forehead in an attempt to divine the question......

.

I think it was "The Amazing Carnac" or something like that????

With the left hand over the air cleaner and the right over his heart.... Closes his eyes and thinks of the flag... rofl..

Welcome to CHR!

The exhaust sounds like it's fairly open (Flowmaster 40 or similar with headers?) and some work has been done internally which may have included a cam with a bit longer cycle/duration. Do you know the cfm on the carb? 600-650 is fine, anything bigger will definitely consume more fuel and probably not contribute to performance. When you say you ran the numbers - are you talking the casting number of the block or the numbers stamped on the pad on the passenger side of the block?

12.5mpg overall may not be that bad - considering the weight of the vehicle and the rear-end ratio is fairly tall to get things moving. Have you done a freeway drive, say 200-300 miles at 55-70mph? My insides tell me you'll see a dramatic improvement in mpg (say 16-20mpg).

My two cents,
Glenn

I'm trying to uploads pics but they won't upload. It is a performer quadrajet so it's not that great. I think about 600cfm.

It has exhaust manifolds and dual pipes with 16" glasspacks. I will keep trying to upload pics.

Some pics for you
After new tires

Old tires

Engine










So that's it. Why I'm asking this question is because people ask what cam it has? I dont know, some people told me it sounded like a 30-30 cam. Don't know what that is? So I thought it was stock but apparently it was changed with the motor rebuild.

Originally Posted by Littlechevy

I'm trying to uploads pics but they won't upload. It is a performer quadrajet so it's not that great. I think about 600cfm.

It has exhaust manifolds and dual pipes with 16" glasspacks. I will keep trying to upload pics.

Seems like someone else mentioned that they had to hit a ten post threshold before they could post pictures, something about keeping the spammers out?

Oh I see, well I have the pics waiting. I will upload as soon as it hits 10

Originally Posted by techinspector1

Reminds me of Johnny Carson wearing the turban and holding an envelope up to this forehead in an attempt to divine the question......

.

yep you bet my turban is out for dry cleaning . but to get this to work the car must be kept under funk&wagnalls front porch over night

If only I knew what Johnny Carson was

Originally Posted by Littlechevy

If only I knew what Johnny Carson was

The "Tonight Show" host prior to Jay Leno....

Oh okay, thanks haha! One more post and I can show you guys pics

Okay here are the pics

Some pics for you
After new tires

Old tires

Engine










So that's it. Why I'm asking this question is because people ask what cam it has? I dont know, some people told me it sounded like a 30-30 cam. Don't know what that is? So I thought it was stock but apparently it was changed with the motor rebuild.

So that's it. Why I'm asking this question is because people ask what cam it has? I dont know, some people told me it sounded like a 30-30 cam. Don't know what that is? So I thought it was stock but apparently it was changed with the motor rebuild.

A 30-30 cam is what Chevrolet used in 375hp Corvettes in 1964 and so named since the valve lash is 30 for the intake valve and 30 for the exhaust valve. It's also a solid lifter cam which will be somewhat noisy and have a definite lope.