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great reading mild.one thing to remember.carbs have been around for a very long time.the holley carb is one of the simplest one s to work on and reliable.i feel good about being able to fix my carb when it breaks or gets out of tune.the efi guys can look down on me all they want.i got a product that works and has been time proven.
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Going rich at high RPM might have nothing to do with jetting but could be acc. pump pull over.
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is extremely easy starting an indicator of anything on a carbed motor? Does it reflect the tuning at all?
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Idle circuit tuning.
Heated intake helps. Most of us don't have heated intakes though. Initial ignition advance setting is just as important as the carb tuning itself. |
Ooops. Double post.
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I like to "Lock Out" the timing..meaning ZERO mechanical advance. Put an MSD Start retard on if you do this! Smooth out the idle a bunch!
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Originally Posted by TAStevens
(Post 4348365)
I like to "Lock Out" the timing..meaning ZERO mechanical advance. Put an MSD Start retard on if you do this! Smooth out the idle a bunch!
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Originally Posted by SB
(Post 4348327)
All depends on booster design (annulars will start sooner), throttle bore + venturi size, air bleed size, and throttle opening. vs the airflow which is determined obviously by engine cid, camshaft, cyl head, intake manifold, throttle opening , exhaust and etc.
On the same engine, A smaller throttle bore/venturi carb with annular boosters and smaller air bleed will start flowing fuel a ton quicker than a huge bore/venturi with larger bleeds and say a dog leg booster. Anyway, I enjoyed the read guys. |
I still need to get in and closer tune mine, waiting for Mild to make a trip to Ohio and help... lol I been just running and enjoying the boat he last 4-5 weeks, after Labor Day I will start tuning again and beating it more...
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So what wideband do you use?
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