right diameter?
Thread Starter
TECH Apprentice
Joined: Aug 2010
Posts: 333
Likes: 0
From: Mexico
right diameter? hey I got a 6.0L with RC 11:1, these are cam spec duration @ .050 intake 231
exh 239 LS 113 valve lift int 617 exh 624, I'm using 243 casting cilinder heads. Converter:3000 RPM, Carburetor:675 holley vacuum, We are 1500 meters lenght to the sea level, Im gonna use all this stuff in a chevy Colorado. so I wanna some advices about headers, what would be the proper diameter in primary tubes and diameter in collector???
exh 239 LS 113 valve lift int 617 exh 624, I'm using 243 casting cilinder heads. Converter:3000 RPM, Carburetor:675 holley vacuum, We are 1500 meters lenght to the sea level, Im gonna use all this stuff in a chevy Colorado. so I wanna some advices about headers, what would be the proper diameter in primary tubes and diameter in collector???
ty 
