Please.
A thermostat isn't going to help any either...you you go ahead and drop a pulley size...probably a 3.4" since that is the most common error for people that don't listen. With a FWI or CAI, 180* T-Stat, a Shift Kit, and a Tuned PCM...a stock GTP would eat you alive. But since I haven't been through 3 motor builds...I know nothing. You go right ahead. It is your money to waste. I won't say anything anymore to help you...