building a mild Daily driver 318

AJ/FormS said

For a Streeter that spends most of it's life at under 3500 rpm, I will take Compression over flow. 3500rpm is about 38 mph with 2.94s in a 904-first gear. Even with 3.91s, 3500 gets you about 30mph.Your heads could flow 700 and it wouldn't be worth a hoot. But 3 points of compression will pay back big time,all the time, every time.

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For a daily driver, compression is the thing to go for IMO.... pays off all across the RPM band. Pays off in mileage and crisp response, any time you hit the throttle. But if you want to romp a bit, then SOME flow is gonna be needed over the stock Mopar heads. The 360 heads on a higher CR 318 is where I would go for not too much dough in the heads; there are choices in the KB piston line to get decent CR with those heads.

Quench is optional; I prefer to do it.... but it adds some build complexity and cost.