Comp cams XE285 High lift

Would this be a good cam for a street/strip 10-5comp 340
in an -65 Dart?

I'll start the replies...yes if your compression ratio is a REAL 10.5:1. If it has "10.5:1 pistons" and you haven't measured I'd say the XE275HL would be a better choice.
R.

as long as you have 10to1, a 3k or better stall, and 3.91 gears or lower, then yes it would be a great cam. If you don't have these especially the gears then no it would be lazy dog.

I ran the XE284H which is very close (other then the extra lift) in my 451 Duster with a true 9.73 compression ratio, Car ran a best of 10.91 @ 121 at 31xx lb. race weight, Stock 906 heads, M1 single, 750dp, 9.5" 4400 stall @ 4.10s with a 28" tire, 60ft. adveraged 1.52-1.54 with a best of 1.51, It was a torque monster, very good street manners, was installed at 105.5, You will be very happy with that cam, but i would run a 9.5" stall at least 38-4200 flash & minimun 3.91s. I'm sure with a little better 60ft. that night i would have pulled off a 10.89, That is outstanding for such a mild mannered cam shifting at 56-5700 .

Joedust, I don't want to be offensive and you have a nice running combo but
Its a 340 he's asking about. You can't really compare a 340 to a 451. The 340 is much more sensitive to cam size. They make good horsepower but the torque has to come from gears and higher converter. A 340 with a 285 cam is gonna want to shift at 6800rpm as well.

I run a 284XE in my 'Cuda with 3:55s in the rear. Compression is 9.72 : 1. Heads are Indybrocks with PBM valves and minimal port work. 1.5 :1 Rockers. Cam was installed at 104.5*. Torque is NOT a problem. Actually it is a problem, you can't use full throttle in 1st. gear without blowing the tires off. Part of this is due to a little too much gear reduction in 1st. gear, but mostly it's just more torque than the tires can handle. It was just as bad when I had 3:23s in the rear. It pulls hard from right off idle to the rev limiter [ 6600 ]. I shift at 6200. Very flexible engine with a broad power band. It will pull down to 1400 in 5th.gear [ equal to 2:41 rear gears ] without bucking and pull up smoothly from there. If I had it to do over again I probably would have used the 285 HL.

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Joedust, I don't want to be offensive and you have a nice running combo but
Its a 340 he's asking about. You can't really compare a 340 to a 451. The 340 is much more sensitive to cam size. They make good horsepower but the torque has to come from gears and higher converter. A 340 with a 285 cam is gonna want to shift at 6800rpm as well.

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Yeah i wasn't paying attention LOL, Ok then, I think the cam will still work fine & be streetable in the 340, I would go with at least a true 10.1 too 10.5, 43-4500 stall & at least a 4.30 gear. Aluminum heads at least 10.8