I am considering purchasing the MCPV-1 master cylinder kit with dual diaphragm booster for my 1932 Ford Tudor sedan. I acquired the car a few months ago, and while trying to figure out why it didn't stop as well as it should with front and rear disk brakes, I found it had a single diaphragm booster. The car was restored with Jag front and rear suspension likely late 70's to mid 80's origin which typically uses 7/8" - 15/16" although some years did use 1" bore. Current master cylinder has a "29969 made in America" stamped on the side. Looks like it may be from a Corvette with 1 1/8" bore. Does anyone have thoughts or suggestions about best bore size to purchase to get the best braking performance? I'm leaning toward the 1".