[MrMagoo]

I have this motor, installed it over the winter and have put about 1700 miles on it so far. You will not be disappointed with the power this motor makes.

It idles reasonably well, runs cool. It comes alive at around 2500 RPM and produces it's peak power around 5200 RPM. Works great on the street. 9:1 compression, runs fine on premium unleaded.

I got 450HP at the rear wheel on a chassis dyno, and I have headers with the stock size 1 5/8 inch primaries.

The AFR 185 heads come standard with stock header bolt pattern, but with the exhaust ports being larger than stock. If you want to run 2" primaries, you'd have to have them drilled diagonally. Ask to talk to Keith and give him your specific requirements and he'll hook you up.