Andrew just in the past I have used them so the fuel delivery stays at correct pressure you have mentioned an adjustable reg so it's in the realms of the unknown for me, I had a mini turbo which needed 3.5psi constant for fuel, the reg was a standard item none adjustable so issues sometimes occurred where the engine idled fine but under load it would be starved of fuel,,,, the fix was to use a return feed and the delivery fuel lines were not to have a diameter less than 8mm
		 
		
		
		
		
		
		
			
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				is mos redintegro 
 
__5th Div___46th Div__   
1942 Ford Universal Carrier No.3 MkI* 
Lower Hull No. 10131 
War Department CT54508 (SOLD) 
1944 Ford Universal Carrier MkII* (under restoration). 
1944 Morris C8 radio body (under restoration).
			 
		
		
		
		
		
	
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