Has anyone tried doing any intake and exhaust manifold port matching?/
F FULL-THROTTLE Cadet Joined Feb 16, 2012 Messages 17 Mar 25, 2022 #1 Has anyone tried doing any intake and exhaust manifold port matching?/
R racerone Supreme Mariner Joined Dec 28, 2013 Messages 38,424 Mar 25, 2022 #2 What motor and what you you think you will accomplish ??
Scott Danforth Grumpy Vintage Moderator still playing with boats Staff member Joined Jul 23, 2011 Messages 50,234 Mar 25, 2022 #3 on I/O's yes, not on outboards
Scott Danforth Grumpy Vintage Moderator still playing with boats Staff member Joined Jul 23, 2011 Messages 50,234 Mar 25, 2022 #5 FULL-THROTTLE said: 1990 volvo 4.3 4brrl Click to expand... most you will gain on a 4.3 is about 3-5hp you will gain more by simply unbolting the crappy heads and bolting on a set of vortec heads (1996 and later) and why did you post in the non-repair outboard forum?
FULL-THROTTLE said: 1990 volvo 4.3 4brrl Click to expand... most you will gain on a 4.3 is about 3-5hp you will gain more by simply unbolting the crappy heads and bolting on a set of vortec heads (1996 and later) and why did you post in the non-repair outboard forum?
F FULL-THROTTLE Cadet Joined Feb 16, 2012 Messages 17 Mar 27, 2022 #6 I was just asking a question, im not looking for any horsepower for speed. Scott respectfully speaking your a hard guy to talk to. I was just asking a question.
I was just asking a question, im not looking for any horsepower for speed. Scott respectfully speaking your a hard guy to talk to. I was just asking a question.