Chevy Small Block Performance upgrades?

[MikeEast]

"Torque is quick, horsepower is fast."

I'd go for a tuner first, free-flow the intake, my AirHammer intake is worth 12-15hp, dyno proven. Then free-flow the exhaust with headers/high-flow cats and a decent catback. My MagnumRT gained a repeatable 25 ftlbs of torque on the dyno just adding a Zoomers catback. The coolest sounds ever are an added bonus.

Then, a cam change if that's feasible, looking for all the torque in the world at the lowest possible rpm range - give up high-rpm power in favor of the low and mid rpm range. That was the concept I presented when I had my DiabloSport Predator 'CMR' tuned, and now it's a two-ton+ mid 13@100+in the 1/4 station wagon and gets 25-27mpg on the way to the track and back.

Mike

[longdx]

The beauty about this is that the 350ci has so many aftermarket parts that it is relatively inexpensive to upgrade your engine's power. I would definitely look at an air-intake and exhaust combo.

[Irkie500]

Intake, Exhaust, Swap for a new Intake Manifold, and if you really need it look for a healthy cam to put in there as well.