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[SPIDERMAN]

That's right.   I am looking for acceleration, not top speed, but I don't want to get it by changing gear ratios (like with drive sprockets) because that screws up highway speed cruising.  I don't care if my bike goes over 110 mph, as long as it gets there damn fast, and still cruises at a reasonable rpm at 70 mph.

Buy the book shown below. There is a whole chapter on cams which will enable you to understand what cam grind you want for your needs

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[Serkcus]

I'm thinking  reliability would be a significant problem.

[TroyL]

From everything that I've read, the cam and head combination is the key to achieving this.

Cam Lift seems to be the term everyone is interested in, but it really just determines how far the cam lobe will open the valve at its peak (think increased flow).

Cam Duration is the other term I hear alot of.  It just measures how long the valve will stay open.

A top notch builder will be able to custom grind an off the shelf cam to match up the valve events in order to maximize the power where you want it.

Advancing the cam (by grinding the cam core or installing the cam with offset bushings) will increase low speed torque at the expense of peak HP.  This moves the valve events earlier in the cycle.  Combined with the Intake and Exhaust durations, you can modify the valve events to minimize overlap and maximize volumetric efficiency.  To get a tree stump puller, you want to open the Intake late and close it early and open the Exhaust late and close it early (I think, but correct me if I'm wrong).

[SPIDERMAN]

Serkus
          Appropos of nothing on this thread, I think your site name is cool as chit dude 

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[kojak]

You dont measure horsepower, you only measure torque on the dyno. HP is calculated by using a formula applying rpm to meaured torque. Basically the shape of your tq curve determines your hp curve.

[grc]

We all talk about how nice and flat our torque curves are - and that is good because it mean you have torque at the low end, and the high end.  What I am proposing is a torque that starts off like that - high everywhere, but just gets higher, even if the result isn't so "flat".

Steve,

What you're describing is a turbo-diesel, or maybe a steam engine.

Seriously, to achieve what you seem to be looking for requires forcing a lot of air and fuel into the cylinders at low rpm.  Fine tuning of cam profile, valve and port shape/size, compression, and exhaust can push the fat part of the curve lower, but there are physical limits to what you can accomplish with a naturally aspirated engine.  Sounds to me like you need a supercharger to achieve your overall objective.

Jerry

[REGGAB]

You dont measure horsepower, you only measure torque on the dyno. HP is calculated by using a formula applying rpm to meaured torque. Basically the shape of your tq curve determines your hp curve.

Like this?  http://www.iprocessmart.com/techsmart/formulas.htm