Need some help: Do any of you think I can safely fire-up & break in my 383 stroker motor w/orig. TBI setup? Spec's are as follow: 383 stroker, forged crank, 6" h-beam rods, GM 847 cam w/1.6 rockers, Edelbrock Victor JR. heads w/68cc chambers, SRP forged flat-tops w/cometic .040/4.066 gaskets for my desired approx. 10.5 c.r.? It will be spring/ early summer b4 I can afford the Accell genVII DFI, intake, throttle body, & controls. I don't want there to be prob's w/rust, poor sealing rings, etc...(Originally posted on DFI/ECM page) guess what I'm really asking is will the TBI programming be sufficient to run this motor for break-in purposes? I know the TBI will be drastically under fueled to actually run this motor @ normal driving conditions.

 

it will be so lean it probably wont even run the timimg table will be way off
but alot of guys on here are runnig engines jsut as built as yours with higher fuel pressure bigger injectors and custom burnt chips

 

What size injectors?
I broke mine in with a stock TBI from a 5.7 suburban with out any problems. My compression was 9.5:1.

 

It depends on the injectors. You can use the original TBI setup if you get larger ones.