1972 Chevy Nova Fitch Fuel Catalyst Install - CHP Step By Step

Once the Fitch Catalyst was securely fastened, we could begin to run the fuel lines. It's important to note that the Fitch Catalyst is a directional-flow system and followed fuel flow with the arrow labeled.

Once the fuel line from the tank was threaded onto the "In" side of the catalyst, we cut the supplied fuel line and left about 12-14 inches to use.

Since we're utilizing stainless braided fuel lines and an aftermarket filter, we had to partially remove some of the AN- 6 fittings in order to accommodate for the rubber fuel lines and fittings that Fitch supplies. To do this, we first removed the 3/8-inch 90-degree elbow from the Fram filter.

Next, we press-fit the 3/8-inch threaded female end into the rubber line. Once we threaded the rubber line into the stainless line, this would complete the fuel flow coming from the tank to the catalyst.

Using pipe sealer, we threaded in a 3/8-inch NPT pipe fitting (press-lock) into the Fram filter and tightened the fitting with a 5/8-inch open wrench. From there, we cut the line to length, pushed the fuel line on, and secured the line on the fitting with a hose clamp.

The last order of business was to thread in the other side of the catalyst with the rubber fuel line. This last fuel line will continue the flow of fuel from the catalyst to the filter and then on toward the mechanical fuel pump. We made sure all fittings were snug on the catalyst using an 11/16-inch wrench.

In case you're wondering, the fuel catalyst did not impede the flow of fuel, nor was there any hint of fuel pressure dips at full boost with the Weiand roots blower. We'll go ahead and say that while we weren't able to document the results before our deadlines, stay tuned for those results and possibly a pass on the chassis dyno.