Proper Exhaust Diameter fo a 4bbl 225?
I've owned/raced many Slants over the years. As far as exhaust on modified engines I ran 2 1/2'' from headers 3-3 to a Y pipe and a full single exhaust to the back bumper. Local exhaust shop made the Y pipe for me.Clifford headers were used.This same pipe was used on 3 different cars. As far as stop light starts,full throttle,I have found that the modified Slant starts to come alive at RPM between 2800 to 3000 rpm. Mainly a street car ? Your's a automatic ? Then a converter will be your next major purchase.This all depends on budget.Once you get a nice free flowing exhaust on then the fine tuning will dial it all in.
I've owned/raced many Slants over the years. As far as exhaust on modified engines I ran 2 1/2'' from headers 3-3 to a Y pipe and a full single exhaust to the back bumper. Local exhaust shop made the Y pipe for me.Clifford headers were used.This same pipe was used on 3 different cars. As far as stop light starts,full throttle,I have found that the modified Slant starts to come alive at RPM between 2800 to 3000 rpm. Mainly a street car ? Your's a automatic ? Then a converter will be your next major purchase.This all depends on budget.Once you get a nice free flowing exhaust on then the fine tuning will dial it all in.
