Cam shaft suggestions

Factory roller cam will give you about as good as low end as any cam will. Check this list ....

• Timing chain - install a new, good, double roller like a edelbrock, and I'd go 2* advanced.
• Check compression, a few cylinders low on compression is a killer in performance and gas mileage. Just a few leaky valves is all it takes
• Set the initial and total timing. Very important as well.

If all three of these are lacking just a little, they add up to a lot.