Why not? If they are small flange they should work fine. Might be down a few hp over small bore but they will work.
My question. Are these setup for a LSR chassis?
You will spend more money and get less of a product trying to piece shit together from here and ebay then having a builder try and sort the mess out. Pick a builder and buy the shit through them.
Ok, so your providing info. Big deal. If you are not going to host events with a better structure than what exists then what is the point of the forum? Its just another "site" it provides no needed change to the races themselves.
Fuel flow disrupted to bowls. Its running out of fuel and it slowly refill them over time. Make sure you actually have fuel flow. A clear hose hooked to the drain and held up will easily show if it does or doesn't have flow when running.