- Jan 31, 2008
I have the NOS Super Power Shot system and bought the optional jets for a 175 shot. I have an Edelbrock 7PSI pump for the carb and one for the nitrous fuel solenoid. I think the 14 PSI pump would work well with a regulator to supply the whole thing, but I already had 2 pumps, so I plumbed a bulkhead fitting into the tank for the NOS fuel. I put a pressure switch in the system and the NOS kept kicking out, thus the reason for the second pump. I shift at 5800 and the engine still hits the rev limiter at 6500 by the time it shifts. The nitrous causes the engine to rev that fast. I have beehive springs and Scorpion chevy style roller rockers on the Champion heads. It will rev more, but I'm not sure it would go any faster. A 7.60 in the 1/8 converts to high 11's in the 1/4 if the charts are believable. The trap speed is 95 mph. The speedo says 100 at the 1/8 mile. The nearest 1/4 to me is 75 miles away. I need a trailer, no guts. The headers I built are the same demensions as the KB 3 into 1 design with capped outlets. I have run full length and can't tell the difference, but the old KB dyno charts say the 3 into 1's have more power. I used a 500 CFM Edelbrock carb on the 3.8 and it ran way better than a 600 Edelbrock that I rejetted to try and make it work. I put the 600 on the stroker motor and it ran perfect. I also had a Q-Jet. Good mileage and response, but the Edelbrock ran stronger. I have had Holleys on my other engines, a 390, a 500, and a 600. I like the Edelbrock.