73-74 HP factory manifolds are the largest free flowing than the earleir yrs so i ran them on my 383 magnum after cutting off the headers an throwing them accross the garage dealing with the z bar an starter ! i found out that i pick up more torqe bottom end an just little less on top end than the shitty leaking headers ! i have 10 to 1 compression and factory 6 pac cam 3.23 gears in 72 charger
Mystery Exhaust manifolds for Use 0n a 1970 383 Cuda
- Thread starter Ariovistus
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