I used Raybesto's number- MC 39862. It bolts right up to the stock booster but double check pushrod adjustment. I had to adjust mine in. Go to your local parts store and get the required adapters so no line cutting is required. Bench bleed before you install it.
This will give you a very firm pedal and your brakes will be very responsive so becareful first time out. NOTE-if you have low engine vacuum due to a lumpy cam, lower than 15 inch's, don't use this MC, your brake pedal will be rock hard and you won't be able to stop.
12.57@104 :O) 
