[DeTomaso] Holley Carb jet extension-stalls on braking

JDeRyke at aol.com JDeRyke at aol.com
Tue Jul 28 17:10:42 EDT 2009


In a message dated 7/28/09 10:22:51 AM, claywillmott at hotmail.com writes:
snip.....
> I recall a thread on the 351 C not being level and tilts forward which 
> may cause the car to stall in some cases with hard braking.
> 
Any competent machine shop can alter a non-Pantera intake from a passenger 
car's 7 degree angle to flat. It involves milling the carb pad flat, then 
drilling the 4 carb stud holes deeper & parallel to the now-flat pad, then 
re-tapping the threads to the new angle; some shops will TIG-weld the stud 
holes closed before drilling and tapping. JB-Weld will not reliably compensate 
for reangled holes that are not deeper or welded up. Omitting this step wll 
cause the carb studs to be at an angle to the carb bosses and can break, bend 
or badly scar them up.   
Possibly, one could oversize the carb holes, then make four angled washers 
to compensate for the angle change, but this will then be a continuing PIA 
whenever you disturb the carb. Best to just make things permanently square; 
its obviously better to get a Pantera-specific or a racing style intake (both 
types are flat) manifold in the first place, even if an angled intake may 
be initially cheaper. Good luck- J Deryke


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