Dirtkartin
New member
I am wondering what is better for my clone. I already have the 308 and 275. I was told the NR 274 would give me the most power with my application. I have 27/24 SS valves, 304wx tilly on gas, head milled 50 thousandths, .20 ARC rod, flat top piston, 26 lb springs.
I run mainly short tracks, one I can flat foot for 8 second laps and one is a flat track that is a couple of seconds slower.
I run mainly short tracks, one I can flat foot for 8 second laps and one is a flat track that is a couple of seconds slower.