Using an Edelbrock triple intake, I made 3 1" spacers. Under the front carb
went the PVC, under the center the distributor under the rear the Power Brakes. However we haven't installed them yet and may not as we have different pads and the brakes are OK. raising the carbs, 48 in the middle and 97's on the ends we had more room for the progressive linkage. Have 5 K miles on it so far