[MrMagoo]

My new crate motor has AFR 185 heads. I placed my old header gasket (a Fel-Pro 1415) on the exhaust ports, and I notice that they are larger than the gasket. Whereas the old stock ports were rectangular, these are rounded at the top, and larger.

AFR's website says use the Fel-Pro 1415, which seems odd since the ports are bigger.