1995 Gen V 454 questions

[Kelly1966]

Good point, the 3:73 (Factory) would make the former 307 rev a bit on the interstate. If I decide on doing more traveling to events, I will look into going to a taller gear. Where I am living is nothing but country roads and 55 mph max speed limits. I am still considering the intake as it is a duel plane with a 3500-6800 RPM range which is a bit out of my operating range, I’m going to try it and just see and if not trade it or source a good used one that’s will be more in how I’m planing on driving.

[truckster]

Are you sure the 454 wasn't throttle body injection? Those are really easy to set up and very reliable. If you have all the parts it would fit your needs perfectly.

[MARKDTN]

Originally Posted by truckster

Are you sure the 454 wasn't throttle body injection? Those are really easy to set up and very reliable. If you have all the parts it would fit your needs perfectly.

I would second that. GM TBI is very easy to set up and being a motorhome setup you already have a nice stand-alone style harness. If you plan no mods to the engine the TBI will do better than any carb as far as mileage and changes in weather conditions. You will need to add a O2 sensor bung on the header collector. The only other thing you may not have is a VSS signal which you can easily add a pulse generator on the speedometer output on the transmission.

[Kelly1966]

My mistake, it was a TBI, I have the intake (Which weighs a ton) and throttle body, harness was butchered and no computer, I have plans this winter to go with some fuel injection but haven’t put much research into it yet. With my LS motors I used the stock harnesses and computers that came from the donors and had to redo the fuel systems. I have heard good things about the Holley Terminators but really don’t think I need something on that level.

[MARKDTN]

Originally Posted by Kelly1966

My mistake, it was a TBI, I have the intake (Which weighs a ton) and throttle body, harness was butchered and no computer, I have plans this winter to go with some fuel injection but haven’t put much research into it yet. With my LS motors I used the stock harnesses and computers that came from the donors and had to redo the fuel systems. I have heard good things about the Holley Terminators but really don’t think I need something on that level.

If you can find a TBI van in a pick-a-part you can get a harness and ECM pretty inexpensively. The Van harness is almost stand-alone and has a long trunk length so it's easy to move the ECM inside. Then all you need is a PROM for a 454. New the harnesses are relatively cheap for a Painless or I found this one for even less.

https://affordable-fuel-injection.co...iring-harness/