600cfm?
- Thread starter 1hc72
- Start date
Michael Mayben
IHPA Tech Moderator - Retired & No Longer Online
Depends upon which engine/intake manifold combo.
If a 4v, then most likely is a Holley 4150 (oem-style) with hot air choke.
That carb is a nominal 600cfm (actually rated less than that but it doesn't matter).
If a 2v, then it would be a Holley 2300 oem design, nominally rated at 275>285cfm.
What are you trying to do?? The "cfm" rating for this really means nothing, the drivability/performance of these engines is dependent upon correct carburetor application which has nothing to do with "cfm".
Michael Mayben
IHPA Tech Moderator - Retired & No Longer Online
Carb "cfm" has nothing to do with fuel economy...proper carb matching and tuning does though.
You are not gonna get anything approaching "economy" when running a tractor engine inna vehicle that has a typical curb weight of 4200>4600lbs. And the frontal area of two sheets of plywood side by side. When these vehicles were designed and produced, economy was the last thing we cared about. Load capacity and ability to work were the criteria. These are not fords or chevrolets.
Normal milage for a pickall will be in the 10>13mpg range, maybe slightly more if you drive inna totally anal-retentive manner using only a vacuum gauge as your guide. Milage for all three sv engines inna squarebody will be near identical. We drive this shit in order to make a statement about political correctness and the lack thereof. And if it infuriates owlgore and obamarama, then blow yore tires up to 80 psi and add another tenth of a mpg until the maypops pop.
Line-installed ac was available on every platform, as well as dealer-installed ac "kits". Then there were the various "aftermarket" ac systems that were fitzalls...same as what some vendors sell for "kits" today but are not dedicated for a specific IH model.
You are not gonna get anything approaching "economy" when running a tractor engine inna vehicle that has a typical curb weight of 4200>4600lbs. And the frontal area of two sheets of plywood side by side. When these vehicles were designed and produced, economy was the last thing we cared about. Load capacity and ability to work were the criteria. These are not fords or chevrolets.
Normal milage for a pickall will be in the 10>13mpg range, maybe slightly more if you drive inna totally anal-retentive manner using only a vacuum gauge as your guide. Milage for all three sv engines inna squarebody will be near identical. We drive this shit in order to make a statement about political correctness and the lack thereof. And if it infuriates owlgore and obamarama, then blow yore tires up to 80 psi and add another tenth of a mpg until the maypops pop.
Line-installed ac was available on every platform, as well as dealer-installed ac "kits". Then there were the various "aftermarket" ac systems that were fitzalls...same as what some vendors sell for "kits" today but are not dedicated for a specific IH model.
X2
Mike helped through a scenario I had about 2 years ago. The motorcraft that came with my 1210,(po installed), needed work and Mike convinced me to go to a Holley 2300. After some mix'in and match'in and gasket corrections, I had a working model. Following his advice on jetting and setting it up, I have now have the sweetest running 345 this truck has seen since new. It averaged 14 mpg, (non-anal driving if you don't mind), commuting to work until the mandatory alkeegazz hit the market.
The 2300 is the 275?cfm, same size as is on the 266 in the Scout. To some that May be small for a 345, but properly jetted and setup there's plenty of power for short haul work.
Michael Mayben
IHPA Tech Moderator - Retired & No Longer Online
Virtually every thing I know regarding the Holley 2300 series mixers is contained in threads in this sub-forum. If you don't see what ya need, then start a new thread for that question, that makes this stuff much easier to search for new members.
The only "secrets" to dealing with this stuff is cleanliness to the point of sterility, and attention to detail when performing the reassembly using the right parts (that means do not use any napa kit on Holley carbs!).