The ST29RV might have a boss for a timed pressure tap on the back plate you can tap out 6-32 or, you'll need a fuel nipple with the same metric thread as the back plate bolt on the bypass side.

There's always the bladder tank option.

You can also use a squeeze bulb connected directly to the spray bar and control the fuel flow by hand.


Motorman  

the Dooling Will Not Run very good on suction if it has the origanal 2 piece needle valve assby . if u use a full body needle valve assbly it will run ok.a fox combat 4-40 pressure fitting will work good in the upper transfer side rear backplate hole in place of the 4/40 screw.make sure the screw hole is drilled all the way through  i dont know anyone that ran a Dooling29 on suction

 the Dooling 29 will not like a 10 in prop .a good all round prop would be in the 8/8 range.back in the day they ran 55/65 %nitro with 7/9-7/10 props for speed and 8/7 tp 8/7-8/8 props cut down as needed

same is true for the S/T for props  RAD

Think its the 21/46 intake that will go in the 21/29 . You need around 3/16 in. bore . For ' B ' team race . !

This is Phil Staples Kiwi ' B ' 21 - 29 RV device . bout 115 mph . They used ABC ' std ' liners . The PIPE liners
the port timing is lower transfer - higher exhaust port , TOP EDGE . If the TOP of the PORTS & the PISTON
coincide ( The Top of the Trans. is tapered , so the top top edge ! ) together its not the pipe liner .

If the Trans. Closer before the Ex , its PIPE timed . But ancient conservative timing , so no problem unpiped . 

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This later version with the small port & flange came in piped , unpiped , Steel & A B C .  The EARLIER
Std Timing Steel Liner versions got a LARGE Ex Port in the Case & no flange . You wanna pull 18.000 rpm on the ground , or 16.000 at least .
The Thinned Bartels F Glass 8 x 8 trimmed to 7 1/2 was pretty much the standard prop . Itll pick up a few thousand  r p m in the air .

And KEEP YOUR FINGERS OUT OF IT . pay to wear a glove & or use a chicken stick .