So looking for advice on what, if anything, to change on my combo.
I bought the car with F-cam, Vic Jr. heads, Edlebrock Performer (yes the very old one) intake, 3.55 gears, and a crappy Treadstone 76mm turbo kit. Shortly after putting some real miles on it the cheapo SS headers developed 3 different cracks. Rather than weld them up, I decided to replace the turbo kit with components I selected myself.
I talked to 3 turbo vendors, they all recommended something different in turbo size. My goal was to push the stock block, and have a fun street machine with maybe a couple trips to the track to see what I can do with it.
In the end, I got what sounded like good advice, and went with Comp turbo 67mm, triple BB, billet wheel turbo. The advice was, you want the smallest turbo that will meet your needs. My needs were 500rwhp and fun on the streets.
Fast forward to dyno today. On 10lbs boost it made 480HP and 575TQ. The difference between HP and TQ is crazy to me. Looking at the dyno graph I would like to flatten the torque curve out some and raise the HP some.
Would an intake change accomplish what I am looking for? I think the Performer is the weak link in my combo but I know it is good for the street.
Take a look at the graph below and let me know what you think. Is the quick TQ peak and then drop off, accompanied by the HP curve and indication of the intake being a bottleneck?