CAN ANYONE HELP ME IM HAVING TROUBLE WITH TRYING TO FIT A DUMP VALVE ON MY 96 SMALL TURBO ESC COS IVE TRIED TWO TYPES OF DUMP VALVE DIAPHRAME & BAILEY PISTON TYPE BOTH VALVES GIVING SAME PROBLEMS BLACK SMOKE / STALLING AT EVERY JUNCTION AND EVERY TIME YOU PUT THE FOOT DOWN BACK FIREING. AS SOON AS YOU TAKE DUMP VALVE OFF CAR RUNS GREAT AGAIN. ANY HELP WOULD BE GREATLY APPRECIATED.