555 bbc wondering on upgrades intake, carb, headers
06-30-2020 | 08:08 AM
#41
Registered
Joined: Oct 2010
Posts: 1,621
Likes: 402
From: Cheboygan, MI
Thisislivin - manilla folder paper with a ball peen. Much easier than cutting.
Ooops, let out another speed secret. LOL. Just playin.
I do this more with exhaust ports vs exhaust header/manifold. You'd be surprised what you find. This is a bigger hurt on power than intake mismatch. Sometime Yuge.
If not sure what I'm saying use that as search terms and you'll find some old guy doing it this way.
Ooops, let out another speed secret. LOL. Just playin.
I do this more with exhaust ports vs exhaust header/manifold. You'd be surprised what you find. This is a bigger hurt on power than intake mismatch. Sometime Yuge.
If not sure what I'm saying use that as search terms and you'll find some old guy doing it this way.
06-30-2020 | 08:52 AM
#42
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Joined: Nov 2004
Posts: 14,094
Likes: 3,684
From: On A Dirt Floor
Yes, good call and exhaust manifold/header flanges blocking some of the port on various engines/head/exhaust combos.
People check intake mismatch and not exhaust, but exhaust mismatch, again if even slight blockage if head’s exhaust port, can cause some pretty serious power reduction.
People check intake mismatch and not exhaust, but exhaust mismatch, again if even slight blockage if head’s exhaust port, can cause some pretty serious power reduction.
