approx. 10,000 miles on parts.
set of unported assembled vortec heads,
edelbrock rpm air gap for vortec heads,
on my 383 this combo made 425 hp and 450 torque with a mild cam
$550 for all
set of unported assembled vortec heads,
edelbrock rpm air gap for vortec heads,
on my 383 this combo made 425 hp and 450 torque with a mild cam
$550 for all





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