Todd, i think the terminator is much better for a big inch motor, it comes with a 4150 base or a 4500 base, i think the terminator has a much better distribution(airwise) setup than the toilet, which comes with a 4150 base, I know that the intake is very critical with a toilet, and most run a spacer or a harricane type high rise manifold in order to get the full effects of the toilet. You can also get 2100 CFM with a terminator, VS 1800 CFM with a toilet. the one thing i donot like about Rons system is the belt mounted drive. I don't like the the long bolt thru front crank drive, i prefer and use the Enderle or DSR harmonic balancer mounted belt drive.
As David said in an earlier the window on tuning gas is much narrower than on alcohol and you probably have to have a bigger selection of pills on hand to stay in the window. But you can change from gas to alcohol in less than an hour by just changing out the nozzle drop-ins, the return pill and recaliberating the leakdown on the barrel valve. I will say that anyone running any brand of injection on gas or alcohol should have a leakdown tester in their tool box.
JMO
Zip.