You can get a new 260hp 350 engine from Jegs for $1500 delivered to your door. Add another $1000 for the carb, manifolds, and accessories. If you already have the components they can be used on the new engine. You will have all the power you need for a street operated vehicle. And you get a warranty! I have installed several of them and everyone was satisfied with the performance.
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