I'm new to the whole ecm and prom programming for the most part but got to thinking I better see if I'm going to be able to get a prom/tune for the combination we are considering in my Morrison Cook Iroc.

In trying to keep the engine mostly stock appearing it will have the factory cast iron manifolds and the intake runners and plenum are factory but the lower is an Edelbrock piece. The engine combo is basically a late model 302 using a 5.7 block and piston with the 4.3 v8 crank and rods in it. Have not decided on heads yet but most likely will be 5.7 iron heads. Camshaft is the GM94666492 .

The ecm is missing in the car but the factory harness is still there. Iirc it has the 9th injector however I have enough TPI parts that I can put it back with or without. It does have to remain mass air for visual purposes as well in regards to ecm choice.

Thoughts? advice? red flags? Still in the planning stages so can be flexible. We may eventually build a stock/legal 305 if I decide to go vintage racing which will be a different prom but for now just going to have fun with the car and maybe a little open track stuff.

 

https://www.dynamicefi.com/

 

Your choices open up a bit more if you go with a MAP based tune. You could always gut a maf and just turn it into a fancy tube, or relocate the IAT there so you don't have to do the one hand plenum line up and clip the thing in the bottom game.