[spf2551]

I have found running a lot of spring pressure keeps the valve from bouncing on the seats and keep harmonics in the valve train down. I do run stainless valves 2.25 & 1.75 which are a little heavy. I also have tapered chrome moly push rods 7/16 x 3/8 which are a little heavy also. if you are going turn a little RPM you need to have good part. since it is just street toy I did not go with titanium parts so the heavy springs. Lift in. 774 ex.739
dur @50 in. 290 ex. 298. 15.7 to 1 compression two HP 950's over 800 HP

SPF2551 Lyle