LS1 block huggers

[Garage Dog 65]

Hi everyone,

I'm building the 65 porsche with the LS1 motor. I have the engine in now and looking at header options. I have clearance issues and little room - so my options might only allow a block hugger type short header. My goal for the engine is 400 hp (intake, cam, headers and 2.5 exhaust). Is that possible with hugger style headers ? Is it a waste for little gain over the stock units ?

Here's what I've seen so far - if it helps

http://www.jegs.com/webapp/wcs/store...59625_-1_10605

Thanks for the help guys !

Jim