I have a L98 TPI 91 Vet ffice:smarttags" /><ST1lace w:st="on"><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-comEng.</st1:country-region></ST1lace>. & when I hit the brakes hard the eng.dies, the car has power brakes with the master cyl. & booster on the frame. The brake work ok before I replace the injectors & the engine runs fine, but I noticed that I only have power brakes the first time & the peddle gets hard each time. Thanks Phil
Sounds like you got a hole in your power booster diaphragm. These symptoms sound exactly the same as I had last week, I replaced the power booster and all's fine.
That's diaphragm. I'd just get rid of it. Hotrods don't have power brakes anyway. While you are at it, replace the TPI with a Blue Flame Six.
try blocking off the vac hose running to it(remove it from the booster) & try it.If it stays running take the booster out & thrw it away. Then builtd a "hotrod" & go on "vette" web sites & see if they help ya with problems you have with a flathead!!lol JimV