I have a built b16A in a 90 honda DX hatch with a set of OBX 40mm ITBS that put down 232 on the dyno and was wondering what others have done when it come to providing enough vacuum for the brake booster. I thought about going manual. I've talked to wilwood but they don't make a manual master cylinder for a honda even though they have brake kits. I've also wrote SSBC because they offer a electric vacuum pump for the brake booster and I'm waiting on there reply. I just like to see what others have done and would love to see pics. Any help would be great. Want to see my car go to garage and look for Green ITBS is the nickname of the car.