Looking for the best fuel injectors to buy for a 95' ram 2500 5.9l gas. Motor is built so feel like it needs more fuel than I'm currently getting. Motor is putting out around 500hp. Want to get the right injectors and there are professionals on this site with way more knowledge and expertise than I. Any help is appreciated. Currently it has the stock 95 injectors and if they look anything like the fuel pump filter did I need to replace them. I have an obd1 system so no option to change computer fuel parameters. Don't know if bumping up the stock pressures slightly would be a factor or not. Here are the cam specs and I have edelbrock rpm performer roller rocker heads on it as well. Attached are the specs.

 

I would be tempted to look at fuel trims, and see what injector pulse width looks like. If you changed the cam, and the heads, chances are REAL good you are underfueling in open loop. That could be VERY bad for your motor. I would be real tempted to pick up a wiring harness, and PCM from a 96, or 97 truck, convert to OBDII, and then get a custom tune for your truck. Otherwise, you are leaving a LOT of power on the table..... and potentially damaging your engine.

 

I am wanting to do the obd2 swap and get a tune for sure. I know i'm losing a lot of power and what not running the way I am. What injectors can I get to replace and put in it before I upgrade to obd2 and get a tune. I won't have time for that for awhile. I'm hoping by maybe getting 26lbs injectors not too much over stock I can get it running safer in open loop with fuel than with what it has now. Any suggestions on injectors until I get it swapped for tunability?

 

Without data I can't recommend anything. I would install a wideband O2 sensor and see what it looks like. If I had to guess using the calculation Injector Size (lb/hr) = (HP × BSFC) / (Number of Injectors × Duty Cycle) you would need 42-48lb/hr assuming BSFC is 0.55, which is on the higher end of normal 92 pump gas.