Need 1 3/4 long tubes for my 347

8850 · 01-05-2001, 04:18 PM

Looking for a set of 1 3/4 headers for my 347 with Twisted Wedge heads. What brand would be the best flowing and make the most hp? I have a C4 so they got to clear the tranny.

------------------
88 347, Twisted wedge heads,Comp Cams 224/230 cam, 1/4=10.718 @ 123.02 mph

Skyman · 01-06-2001, 09:05 PM

Did you ever up your compression ratio?

Skyler

------------------
-1989 Saleen Mustang #406-
TFS Heads, Edelbrock intake, E-303, 3.73's, 1 5/8 shorty headers, Offroad-Hpipe, 2chamber flows, 36psi FPR, playing with timing still, 70mm tb, 73mm maf, 24lb injectors, K/N, March Crank pulley, MSD6a, 9mm wires and FMS Aluminum driveshaft.
Best ET 13.2@106mph Needs tuning...

8850 · 01-07-2001, 08:41 AM

Skyler,

I have 9.9:1 compression ratio. I am not sure but maybe these shortie headers are holding be back as this engine just doesn't pull above 5000 rpm. With this cam it should. I have ported the headers good and open them up to 1415 exhaust gasket but something is causing the hp to fall off at higher rpm.

01-05-2001, 04:18 PM	#1
8850 Registered Member Join Date: Nov 1998 Location: Sugarland, TX USA Posts: 161	Need 1 3/4 long tubes for my 347 Looking for a set of 1 3/4 headers for my 347 with Twisted Wedge heads. What brand would be the best flowing and make the most hp? I have a C4 so they got to clear the tranny. ------------------ 88 347, Twisted wedge heads,Comp Cams 224/230 cam, 1/4=10.718 @ 123.02 mph

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Long Tubes for AOD	Mustvid	Windsor Power	4	09-18-2003 09:29 AM
will bbk long tubes fit with a c-4?...please help	dragstang86	Windsor Power	3	04-24-2003 12:49 PM
TFS High Ports and Long Tubes	HORSEMEN RACING	Windsor Power	3	07-16-2002 12:57 PM
long tubes or shortys	5ohCOUPE	Windsor Power	7	11-14-2001 09:19 AM
1 3/4 Hooker Long Tubes vs Shorties results!	8850	Windsor Power	2	02-04-2001 12:42 AM

01-06-2001, 09:05 PM	#2
Skyman I need 110mph Trap Speed! Join Date: Feb 1999 Location: So, CA Posts: 4,315	Did you ever up your compression ratio? Skyler ------------------ -1989 Saleen Mustang #406- TFS Heads, Edelbrock intake, E-303, 3.73's, 1 5/8 shorty headers, Offroad-Hpipe, 2chamber flows, 36psi FPR, playing with timing still, 70mm tb, 73mm maf, 24lb injectors, K/N, March Crank pulley, MSD6a, 9mm wires and FMS Aluminum driveshaft. Best ET 13.2@106mph Needs tuning...

01-07-2001, 08:41 AM	#3
8850 Registered Member Join Date: Nov 1998 Location: Sugarland, TX USA Posts: 161	Skyler, I have 9.9:1 compression ratio. I am not sure but maybe these shortie headers are holding be back as this engine just doesn't pull above 5000 rpm. With this cam it should. I have ported the headers good and open them up to 1415 exhaust gasket but something is causing the hp to fall off at higher rpm.