Posted By: bobs69
How big is your toilet bowl - 02/18/15 11:54 PM
Looking at changing to Ron's toilet bowl set up. Which one do I need there are a few used ones floating around. I have a 514 big block. Any information will help Thanks
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with injection you can't go too big. I run a bird catcher which flows around 4800 cfm on my 512.
If you plan on running a throttle stop class I would go with the terminator,because it seems to be better coming off the stop.
Joe
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The smaller throttle body (3-3/4" Butterfly- 1240 CFM) is identified by a black throttle blade and is reserved for 327 to 383 cubic inch engines where the owner has no plans of going bigger in cubic inch in the years to come. This throttle body typically is utilized with a "0" pump and flowed nozzle jets ranging from #29 to #35 nozzle jets.
The middle-sized throttle body is the most popular with a 4" Butterfly (1435 CFM) throttle blade. This red throttle blade unit has a wide span of cubic inch compatibility ranging from 355" to as much as 502". This throttle body can work with a "0" or "0-1/2" pump and typically utilizes flowed nozzle jets ranging from #32 to #37 nozzle jets.
The biggest throttle body features a purple throttle blade and comes in at 1800 CFM (4.100" Butterfly). This unit is set aside for the bigger cubic inch/higher horsepower applications. Engines from 421" to 572" can put this throttle body to work. Typically this throttle body will be mated with a "0-1/2" pump that will feed approximately 1000 HP with as big as #41 flowed nozzle jet.