318 (275 Hp)

SleeperScamp said

You say you want more power.. Is this because the car seems like it is slow??? You want more get up and go? You may just need to change your gear ratio.... Even with a really good build up on that 318 if you have some highway gears in there its going to be a dog!!! Gears are a cheap way to go fast!!! Just my $0.02....

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Have to agree I had a 74 a body that my mom bought new and the gears were way too high. In my 89 m body I just switched from 2.3 to 2.9 and the 318 is a LOT faster ( not saying much but I only take it yarding and .. ) so thats my 2c.

Now if I were building the motor I would have put more compression in it. RV cam and ported heads and low compression also not a good combo. When the motor was built did they tell you what the static compression ratio is? B4 you buy any new parts check the compression for me.