There were never any Boss 302 in '68. First year was '69 and ended in '70. Boring a 302 to a 305? If you bore a 302 out to a standard .30 over I'm pretty sure that makes it a 306. Like the previous poster said that has no bearing on exhaust sound.
If you want exhaust "as loud as possible" just run a straight pipe out the side from the headers without any mufflers. If you want mufflers then go with basic Flowmasters and just look at their basic muffler chart and it will tell you which is the loudest.
yall are right i put a 302 boss motor in a 1968 mustang coupe its my school's car for auto tech im in charge of it let me know if there is anything i can do to make it loud and mean. btw we cant run straight headers there is no back pressure the cold air goes in it messes up ur motor
If you have a legit B 302 you don't have to do much. They put out over 350 hp in stock form. For sound, I'm running old Flowmasters with 2 1/2 inch exhaust. Sounds good, but I don't get hassled by the local po-po. Ultimately, do what makes you happy.
its never going to be driven on the road we take it to football games and rev the engine up everytime we score a touchdown and plus we drag race a couple times this year so i dont have to worry about the popo
Run a short glasspack or bullet muffler right off the headers and dump out the sides.
And you won't need to worry about cold air or back pressure for what you are doing. You may lose a little bit of HP if your exhaust isn't set up right, but you won't do anything to hurt your engine with a setup like this.
Seriously, don't let anyone tell you cold air is going to come up your exhaust pipe and mess up your engine. Chances are, they are just talking out theirs. :lol:
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