a 241 cam will powerpeak around 5400, with a resulting Torque peak at around 3900, and 80% of that is 3120
Thus your selection is from 2900 to 3300
However, in your case, the cylinder pressure, at just 10.2 Scr is gonna be lower than ideal. Using the Wallace-Calculator, I put you down for 1000 ft elevation, with an Ica of 68*, with which the Wallace then predicts is 156psi and a P/V index of just 128; the weakness of which I'm guessing, is frustrating you.
So then, even tho my formula indicates 2900 to 3300, and normally with 3.91s this would want the 2900, in your case, I would go to the hi-side of the window at 3300.
IMO, tho, that cam is way bigger than it needs to be, for a streeter, and the rear gears are too small for it. So Ima guessing you are Dual-Purposing it. In which case, I would add another 100 or even 200, getting you up to 3500 stall.
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The trouble is;
Firstly;
that when you get tired of that gas-hog cam, and stick a 228@050 in her, the 3500 is way too big for that. The 228 will torque peak at ~3600, thus wanting a stall window of 2880 +/-200, and with 3.91s, will like a ~2700 stall.
Secondly;
the cylinder pressure will rise to ~166, and the V/P to 144. While the V/P of 144 is an excellent number; way stronger than the previous 128, (about 12.5%, about the equivalent of adding another cylinder); the 166psi is borderline too much pressure for pumpgas and open-chamber iron heads. Borderline. I'd be willing to try it with the 3.91s, and a 2800, then play with the Ica to see what I could get away with. But, the 228 cam, with say a 2800 stall, will pull 3.23s quite happily, and burn way less gas doing it, and especially so, if you can run the stall down to 2800, without detonation.
If I installed a 228* cam, I would get it on a 107 LSA, to try and keep some overlap, to keep the power over the nose as high as possible. If you pick the right cam, you could get a 4>6 degree ICA window to work with.
Lemme show you what I mean.
I'm guessing your current cam is advertised at;
284/292/110 ; in at 106, the events are
284 intake/112 comp/100 extraction/292 exhaust/68 o-lap
Next is a theoretical custom 228/236/107LSA cam
272 intake/118 comp/109 extraction/282 exhaust/61 o-lap
This is installed at 106, just 1* advanced. You could easily install this cam 3 degrees in either direction.
Lets retard it to in at 109 and see what happens. I get
272 intake/115 comp/112 extraction/282 exhaust/61 o-lap
Now let's compare yours (in black) to the one in purple;
the rpm of peak power has come down ~300rpm
The pressure has gone up to 162 psi
Extraction is up a whopping 12 degrees, and
the overlap lost was just 7*
now the interpretation;
Power is down a good 5%
Peak torque is 300 rpm lower and a good 5% greater
The increased cylinder pressure means better throttle response and quite abit more low-rpm/midrange torque.
The extra degrees of extraction are gonna really boost your hiway-fuel economy. I mean really!
The greater pressure together with the greater extraction, are gonna boost your city economy.
The extra pressure is gonna let you, if you are so inclined, run less rear gear. This will further reduce your fuel-consumption on the hiway. They say about half the percentage difference. But in your case with the smaller cam, you can expect way better numbers than that.
However;
you did state;
Street/Strip, so I know I'm preaching to the wrong guy, lol.
But I just gotta say;
I also have a 68 Barracuda with a 367@11/1, but she's a 4-speed/and with 3.55s. It has gone 93mph in the Eighth @3457 pounds @900ft elevation, with a 230/237/110 cam. That's fast enough for me.
And she idles down the hiway in overdrive at 2240 rpm, sipping fuel.
She used to be my DD, until the rust became too embarrassing.
