If you had $2K to play with...

'70-Challenger said

buy a ram air intake manifold, and headers from clifford performance

Click to expand...

Yeah, if you feel like flushing some or all of your $2K down the toilet...

If you MUST have Clifford headers, find a set on Ebay. It's not the headers themselves that are bad, just Clifford's customer service (or lack of). There are also alternatives to headers, depending on your goals. Anything less than an all-out race car can see big improvements from Dutra Duals:

http://slantsix.org/articles/exhaust-man-mods/exhaust-manifold-mods.htm

Plus, they'll probably outlast your car.