Best Top 10 Bolt Ons For a 318
Seriously, add compression and a good set of heads.
Will it be fast no, but it will be faster than stock.
Or boost it, but that adds more issues.
Regardless, a stock 318 is what it is, just a basic people mover, I have done the 4 bbl, headers, gears etc. It is cheaper to put in a bigger engine.