Need to know what can be done to fix no holding power at line Wilwood Prop valve or stock which is better and does anyone have adapter fittings to go from metric lines to wilwood prop valve.Any help greatly appreciated

 

are you talking about using line loc? SSBC has a real nice adjustable prop valve. FineLines can make you pretty much whatever lines you need, even in stainless!
i think that if you are pulling thru the lights at stall you should at least be using line loc. depending on your transmission and stall speed a trans brake may be in order.
bias the brakes front to rear with the adjustable prop valve so the car stops hard and level, don't try to bias to keep it in the lights or you might get a suprize at the long end of the track!

 

Have a line loc but dont help much and isnt permitted in this class no electronics foot brake only