Cam advice wanted

69 Cuda 440 said

Autopar 3000

The Edelbrock LD-340 is a damn good intake, and works so well on the street, where a little more torque and lower RPM power desired.

Since you already have it, no reason to switch to a Performer to gain at best nothing.

And, with 8.0 to 8.5 Compression and Small-Valve 360 Cylinder Heads, anything bigger than a .470" Lift and 270* Camshaft will make that Engine 'flatten out', especially with a Stock Converter and 3.23 Gears.

Click to expand...

Between the unplanned much extra money I'm spending on the car right now and the advice I'm getting from you and others, I'll probably end up keeping that LD340.

Do you think I'm running 8.0 - 8.5 compression? Others have told me it's probably around 7.5. Maybe those thin gaskets will help get it all the way up to 8.0.

My converter is a little hotter than stock, but I totally hear what you're saying about a big cam flattening this motor. In fact, after looking at all the options I ordered the very cam that you suggested.

But since the heads are off and I have to wait a week + for the cam to arrive, now I'm considering having the heads milled a little bit. So of course I have questions...

How deep of a cut do you guys think I should do? I don't want the compression too high, because I really like the fact that I can run 87 octane. 89 might be acceptable, but once I get into the 91 range I'm looking an extra $10 per tank of gas, so I want to be careful with this. Also, I don't suppose I could have the heads milled without having them disassembled, could I?