Quote:
Originally Posted by jal
So, if increasing the pipe diameter to 3.5" and find the best flowing muffler helps me, that is the path I'd like to go down.
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That;s why I asked if you had ran the car with open exhaust. That would let you know what ET/MPH the car is capable of and if your current exhaust is hurting your performance. I bet it is, especially with Flowmaster mufflers (although they do sound great)
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'68 Firebird
463/pump gas/SD 325 E-heads/266-272 SR cam/1050 Dominator/3.73/ET Street Radials/1.37 60'/6.30@108.80/9.93@135.14
Hot Rod Drag Week finishing averages:
2014 - 11.12 @ 118.56
2015 - 10.84 @ 124.97
2016 - 10.56 @ 127.88
2017 - 10.29 @ 130.74
2018 - 10.29 @ 130.53
2019 - 10.16 @ 132.34
2021 - 10.09 @ 132.69
2022 - 10.13 @ 133.07
9.93 run -
https://youtu.be/hII0_UlYM4U
