I’m thinking about a large streetport and wonder if the stock injectors will suffice or if I need to upgrade. If I go with bigger injectors, do I need to go stand alone or will the stock ECU work?
Basically, will the streetport with stock injectors, ECU, and fuel pump be worth the effort?
Thanks,
~j

 

The stock injectors are plenty for a streetported NA. The stock NA ECU runs super rich by today's standards. Get a streetport, keep the stock injectors and ECU. Get a SAFC and get it tuned. You will STILL need to tune fuel down to make more power. It is tuned that rich stock.

 

I have an 86 N/A with a streetport. Everything else is stock but for a K&N intake filter... my narrowband O2 sensor reports a good rich mixture all the way up to redline, with a 1/2 sec or so lean spot at the 3800 rpm point, but no physically discernable hesitation.

If you are going to the trouble of building up an engine with a streetport, I would recommend sending the stock injectors out for a professional cleaning at the same time.