16196395 $OE tuning help

[stew86MCSS396]

***UP date ***got data working ,used bin for BHDC $OE 7.4L manual. recal injetors and ci running but poor

Spark timing is gonna be all wrong using 7.4L to run your vortec headed 5.7L. Suggest you search for a vortec/LT1 spark map and cut-n-paste. Fix your fuel trims by adjusting VE tables based on feed back from BLM data logs.
http://www.gearhead-efi.com/Fuel-Inj...-data-Tutorial!

[tayto]

factory 94/95 small block with manual transmissions actually still used the older C3 ECM (very similar to the 747). you have 2 options.
1. find the correct ecu and use that. this will require repinning the ecu connectors to the older style. while this seems backwards you will have a lot of stock calibrations to choose from that will match your engine and transmission combo.
2. use a manual $0E or $0D calibration and try and copy stuff from another 5.7L calibration to create a starter bin that will get you running.

have you tried messaging dave_w? he runs a tuning business and would probably be able to put together a starter bin for you for a fee ....

http://www.gearhead-efi.com/Fuel-Inj...r.php?4-dave-w