318 parts list

A daily driver with enoug power for a bit of fun. OK

1st, 3.73's are not a off the shelf gear. In fact, there a bit hard to find.
2nd, a new set of pistons will require machine work on the block.
I like the bud above. Nice combo.

Cheaply/inexpensively done performance is possible but limiting since increasing the compression is a huge plus when you start increasing the cam size/duration. With this in mind, the only way to increase compression is milling the heads.

Before we mill the heads and probably create more issues, attention to the build details and cam size is important. Try this combo for 14 second zone.

Open air cleaner on top of a 600 CFM carb.
Dual plane intake. Edelbrock Performer, LD4B or a Weiand Action Plus. A factory iron 340 intake also isn't a bad choice ether.
I used a Crane cam for this build but what is important are the duration numbers since they dictate the RPM range it'll operate in.
Crane Cams 272/284-.454-.480-112 (216/228 @ .050)
Headers into a 2-1/2 exhaust.

I ran this in a stock '78, 318 with 3.21 gears a d a stock converter. It ran 15.14 first day out.