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I'm 57, headers are the only choice, period.

I do believe the older ones did not do oxides they used EGR for that. Most new (1996 and newer OBD2 cars) have slowly eliminated the EGR. From my limited knowledge oxides are created by superheated combustion. Mostly caused by lean mixtures, which is what all modern cars fuel systems strive...

Disclaimer: I do not have EFI of any type on any old car. From reading, engine masters, other various you tube channels, it seems to me that a carburetor replacement EFI like a Holley sniper is still subject to the same problems as a carburetor. Meaning dual plane, big overlap cam, wrong...

So to all the guys that hate headers, love reproduction 14" bias tires and want 3.55 or better gears "to give some punch off the line" when exactly are you below 3500 rpm? My Challenger has 3.23 and my never seem to wear out 225/70r14 tires and I'm at 3400 at 70mph. I guess in your driveway and...

20 horsepower is a excellent number for a bolt on external part. What other part could you bolt on and gain 6-7%. Magic spark plugs? Yeah, seriously Bigger Carburetor? Now your affecting low speed drivability Blower? That would give you quite a gain, but far from simple bolt on, and your 9.5:1...

Well, I did not test this, but they all dump into a chamber at different angles and then move into the exhaust pipe. Yes the early ones are swoopy and look better than the 60s 383-2bbl log manifolds, or the more bulbous 73-74 HP manifolds. The headers point everything in the same direction...

I've got free headers on my Charger, how is that for cheap headers and god know waaaaaay less money than those overpriced boat anchors. I've had to change my starter with headers. Never had to drain the antifreeze. I must have done something wrong? Can anyone guide me on what I did wrong? I...

California is heading that way. You used 500 plastic shopping bags last month, oh that ok. You drove your gasoline powered vehicle 5.6 miles last month? You owe us xxxx,$$$$

Put the pipes together with a H or X and problems will go away, and it will flow better as a bonus.

I don't know about other people's seat of pants. But from that article 65-80 ft lbs through the entire rpm range IS noticeable.

Headers win period. Fuel mileage, HP, torque, weight, nowhere is the manifolds better. If your having problems with your headers look in the mirror, there is your problem.

Long tube headers make more power everywhere, and MPG to boot. Put a RB in it and the flanges will be higher.