just get you a 3/8 plug, drill it out to the size you're happy with and test it. if its TOO slow, drill it out more....makes it way easier instead of having to buy new valves...
thanks for the advice but im havng a shop do it for me and they said they want to run 1/4 inch im cool with it i want it laid out slow just want to see how it looks, thanks bro
i just have smc 3/8 the older valves for the dumps but 1/2 for the fills...with just reducers on them. ive always wanted 1/4 dumps though....looks badass bro