How to build a 13 second 340 Duster

How to build a 13 second 340 Duster

Thanks moper.

I did a little reading about this and posted some info but somehow it didn't get onto the forum.

Basically just some principles regarding actual operating compression. One significant one being the fact that less than atmospheric pressure is delivered to the intake valve, with everything between the atmosphere and the cylinder (air cleaner, carb, intake, valve train, valve train timing etc) playing a part in how much less than atmospheric pressure is delivered. Then there's the flow characteristics, such a swirl. Exhaust resistance will also effect overall flow so there's much more than the static compression ratio, piston and chamber design involved, as you have pointed out.

It seems actual operating compression is a hard thing to pin down. It also seems to me that it is the fundamental parameter determining power output through which essentially all performance enhancements have their effect.

Hmmm... lots to think about. I'm still thinking the aluminum head upgrade makes sense, assuming Edelbrock incorporates newer/better design.

A360: Here's the answer to the octane question:
(from this website: http://en.wikipedia.org/wiki/Octane_rating)

In most countries (including all of Europe and Australia) the "headline" octane that would be shown on the pump is the RON, but in the United States and some other countries the headline number is the average of the RON and the MON, sometimes called the Anti-Knock Index (AKI), Road Octane Number (RdON), Pump Octane Number (PON), or (R+M)/2. Because of the 8 to 10 point difference noted above, this means that the octane in the United States will be about 4 to 5 points lower than the same fuel elsewhere: 87 octane fuel, the "regular" gasoline in the US and Canada, would be 91-95 (regular) in Europe.

Arlie