Hi, Im wanting to check the float levels on my holley (2) 750 carbs. both carbs are installed on the vehicle but Im concerned about doing this with the engine running. the motor has a mech fuel pump and reg just ahead of carbs. Is this normally done running or not? If not what is the procedure?
thanks jim
IT should be rather obvious but obviously is not!
IT should be rather obvious that a great deal of the info you need to build a really efficient engine combo is easily calculated if you know just a few basics about what you want to build and the enviroment or power band its expected to operate in,but obviously is not! AND YES EVERY PART CHOICE...
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setting up your fuel system
when your setting up your cars fuel delivery system, you'll obviously need to know the physically requirements of the engine your about to feed, For your older carburetor, equiped muscle car, this will generally be for most performance cars 5-6 psi of fuel pressure at the carb inlet port, a fuel...
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loss of third gear fuel pressure?
Hi all, I have a fairly healthy (~460hp) 406 SBC with a 800cfm DP Holley, a Carter M4891 (120gph) mechanical fuel pump and 3/8" hard line front to back with a 3/8" pickup. This fuel system has worked great for me the last three seasons of driving and ~30 passes down the quarter mile. But when...
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how big a fuel pump do you need?
for a decent performance engine, that many guys build, I think your generally going to find an engine used on the street having under 450 rear wheel horse power equipped, with a carburetor(S) you'll need consistent fuel flow at 5-6 psi,and 80-110gph ,Holley,G.M. PERFORMANCE, SUMMIT RACING...
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dual quads
the first thing I suppose I should point out is that many, but not all, low rise dual quad and cross ram dual quad intakes are 30-60 year old designs, based on what was originally a need to increase air flow past what was available from any available at the time single quad (4 barrel carb)...
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carb tuning info and links
it helps a great deal to know what your working with ,ID suggest starting, by verifying TDC and having the correct timing tape on your damper then,start with 8 degrees btdc and verifying the full advance of 36 degrees total is all in at 3200rpm as a base line, once youve got that, as a standard...
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fuel pressure regulators
Volume vs. Pressure FUEL Volume and FUEL pressure are two completely different things when you talk about fuel,supplied to an engine, but they must work together to give you the proper air/fuel mixture delivery. Both carburetors and EFI systems require the proper fuel volume to make the desired...
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Holley 660 dual quads set up
Hi has anyone had some experience setting up Holley 660 dual quads. I have a reco pair on my tunnel rammed 351 windsor in a Ford falcon . My problem is with the 1:1 linkage set up , when you press accelerator pedal down it will go so far nice and smooth and then as the primarys linkage start to...
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getting the float level correct is only part of the issue you'll face, youll need a steady 5-6 psi,
and enough volume of fuel even under higher g-loads youll see under hard acceleration.
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