just did header install with hooker 2460 shorty headers, hooker ypipe with cat delete and magnaflow exhaust. i also deleted smog and ac. i don't have a dyno for this obviously so i was wondering if anyone had an idea of how much horsepower i might have picked up. just wanted to add this setup is nice. its very quiet which surprised me until under wot. car runs smoother it seems. thanks

You can expect about 20 RWHP with shorties and full exhaust, on a 350tpi. 305, maybe a bit less. I went from 214 to 235 with headers and full exhaust on the dyno