I wouldn't use any of those, but I know nothing about BBs,lol
The Elgen ramps are too slow. Sure it makes plenty of torque, probably way too much. But the advertised is gonna steal vacuum.
The first and last are on 112s and I'm no fan of that on a streeter.
The other two are practically identical, except for the LSA.
>If I had only these three to chose from, it would be the 268/276/110 and the reason is because;in at 108 the ICA is 62*. And that leaves 118* for compression and 110* for extraction. And I particularly attracted to that 110 extraction. It is 16 more than the gas swilling Elgin, and 5 more than the pressure dropping Howards.In a streeter getting more than 8mpgs is a pretty big deal,, so to that end;
>if I wanted a spunky 400 to still operate the power brakes,I would get a solid flat tappet about 1.5sizes bigger on the .050Tappet Lift, so say a 274/280/106. (236/[email protected]).. In at 104 the ICA is 61 so that is gonna make a lot of torque compared to the Elgin, and similar torque to the Lunati. But the 67* of overlap is 15* more than the other two, and only 2* less than the Elgin so it's gonna make a nice bump in the power curve. The 119* of compression is the largest of the lot and so is the 114* of extraction. And best of all......it might have a nice spunky idle. Now all you gotta do is engineer the compression around the 61* of ICA, soz it can burn whatever octane gas you think you can afford. Me? I'd set it up for 87E10,lol. Why? because it's gonna have more torque than the chassis can handle .....with any compression ratio..... so I might as well save some money at the pump. And If something happens to the supply of hi-test, well,you can still run your car, it won't affect you.
It's a solid-lifter cam tho, so you have to keep your eye on the lash.
This is a serious street cam.I know it doesn't look serious at 236/242, but with long-tubes and a free-flowing exhaust, that 67* of overlap is gonna make a nice little bump starting at the torque peak and rocking up the curve, and extending the power a little past where your typical 110 cam would roll off. Well that might be deceptive. The 110 will kindof flat line for a ways with a gentle roll-off, whereas the 106 will wham up to a higher power-level and then kindof crash, but a little further up the curve. This is perfect for a streeter who rarely takes the speed run into third gear, or even into second.
With 4.10s it will wham thru first gear in a heartbeat, but if you can control yourself, First gear will get you to 50plus mph.On the 1-2 shift, the Rs might drop to 3850, wait what was your stall again? no matter, it's a high torque 400 with extended revability, so it will pull just fine from whatever it drops to.I'd call that capital S-Spunky.In fact, I can see this working pretty good with a lot less gear. Ima thinking the 3.55s are more than enough with a 2500/2800stall, or 3.23s with a 2800 or a little more. 32mph would be 3600in low with 3.55s, so I can totally see the tires erupting in flames on the 2-1 backshift,lol.
But I know nothing about BBs so I'm just speculating,
But I think I might order me a cam like that for my 367 4-speeder.Yes-sir, I'ma liking it.
