Quote Originally Posted by 84Monte View Post
Ok, so after everyone has told me I won't make any power from a 267, I've decided I'm going to get a 350. It's all stock from a 1978 chevy van. Plans are to get a 4 barrel intake, 4 barrel Holley 600cfm carb, headers, either noisy gear drive or double roller timing chain, comp valve springs, performer distributor, possibly port and polish the heads, and a cam. Now where I need advice is with the cam. I want something with a aggressive lopey sound, and also good power through the power band. I've found these 3 that I like on summit, Lunati bracket master II 292/292 duration and 480/480 lift, Lunati bracket master II 300/300 duration and 415/415 lift, and Summit Racing 303/313 duration and 487/508 lift. All 3 are hydraulic flat tappet cams. Oh and btw this engine will be backed by a turbo 350 with a shift kit. Any advice on these cams or any other cams is appreciated. Thanks!
Ditto what the other pros have said regarding big cams on the street. All 3 of those bumpsticks will kill vacuum, idle poorly and without the required thousands of $$$ worth of complementary engine and drivetrain upgrades, make you an unhappy camper.

So, that 350 you've found can be a great street motor if you show some restraint and put your plan on paper FIRST. How about a nice low-midrange torque hydraulic cam to start? I love the XE262 grind from compcams. It provides plenty of zip with stock converter and gears but can also respond well to later additions like a taller gear, nitrous, or a set of better heads. Depending or the rest of your build, that same cam can produce from 250hp all the way to nearly 400hp. All while maintaining a fat torque curve and real world streetability on 93 octane.

The point in an ongoing project like yours is to keep your options open as money and time make more things possible. Imho.