I love watching this show! I wanted long tube, but i have ground clearance issues. So I am using mid length !
keep in mind they used a performance, cast log manifold ,
most O.E.M. cast manifolds would be much more restrictive
cast manifold 450 ft lbs 470 hp
shorty headers 464 ft lbs 488 hp
full length headers 474 ft lbs 495 HP
grumpy, who makes a really good quality header for my car?
DJONE3000 said:I have a 95 lt1 Impala ss installed long tube headers now lost power on the low end. help???
I need to get an exhaust system for my 63 impala and I have the 2.5 ramhorn manifolds.
The system I am looking at (classic industry) list 2 systems for the high performance 327. One list the head pipe as 2 1/4 inches (14 gauge) and the other head pipe is 2.5 inches, but uses 16 gauge steel.
I am wondering if the 2.25 in is the inside diameter of the pipe or is this the wrong system?
I am assuming that the only size pipe for the high performance 327 is 2.5 inches.
Also, which gauge would be better?