Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 750 double pumper or vacuum secondary
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Old 11-12-2010, 12:34 PM
brucer69 brucer69 is offline
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an lt1 setup would work, but the optispark distributor is crap, and actually wouldnt be worth messing with....

heres a junkyard parts list for an LS based fuel injection setup

any ls1 based pcm will work, you'll just have to get it reflashed, many reflash for like $50.00

heres the list

12200411 PCM (LS1, Truck, S-10, Blazer, Express, others)
Wiring Harness for 12200411 (must follow Vortec L31 schematics for the 18436572 firing order)
Vortec 305/350 Distributor (has camshaft sensor in it)
Vortec 305/350 Harmonic Balancer (if your 383 is internally balanced, if not, retain your balancer and cut the thickness of the reluctor wheel from the hub)
Vortec 305/350 Timing Cover(crank position sensor provision)
Vortec Timing Reluctor Ring (goes behind timing cover)
Vortec Crank Position Sensor
Vortec Ignition Module
Vortec Coil
Knock Sensor (2001 Express Van w/ 5.7 engine)

injection intake and rails, professional products makes a decent setup...

injectors, ford 30lb redtops would be minimum, can be found on ebay very reasonable..

i have always made it a point to run a dbl pumper with a manual transmission..

if you have a bog off idle go to a larger discharge nozzle.. if you cant get the dbl pumper adjusted correctly you'll never get a vacuum secondary carb to work correct..
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