It's always good to be able to get more speed out of these old vehicles but you should also think about the brakes during this process. If you plan to cruise the freeways with the Honda crazies you will need to be able to stop quickly. In my opinion the stock brakes are not up to the task.
Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine