kevin kuether

iTrader: (1)

I am currently building a 427 and I have a custom grind comp cam. My question is should I use a 1.7 or 1.8 ratio rocker arm. The lift is .630 on both intake and exhaust. Comp said either way it will be fine. I have already measured p/v clearence and I have plenty of room for either one. The car will be mostly street driven with some occasional track time. I just wasn't sure if there was any benefit or downside to running the 1.8 ratio.