header ???

[earthmover]

single primary style header
pri dia... 2.050" to 2.175" ...length 33.5" to 36.6"
collector dia... 3.725" to 3.975" .. length 17.9"
-----------------------------
2 step style
1st pri dia... 2.050" ... length .. 16.7" to 18.3"
2nd pri dia... 2.175" ... length .. 16.7" to 18.3"
same collector
--------------------------------
3 step style
1st pri dia... 2.050" ... length ..16.7" to 18.3"
2nd pri dia... 2.175" ... length ..8.4" to 9.1"
3rd pri dia... 2.300" ... length .. 8.4" to 9.1"
same collector but stay to the large size
all specs are OD with a wall thickness of .06

this is what the header program call for on my motor and car.. what header should i build??? step or reg. tube header??? will the step make more power??????

 

[boosted]

If you have the time and money to build a step header I would go for that... The step header will help with tq and hp better.

Take a look here and lemons can shed some light.. No use for me to re type it..

http://www.lemonsheaders.com/interview.htm