I have been using cometic head gaskets , but they keep going up on price, now $200.00 set, was wondering if felpro1009 would work or has anybody tried the mr gasket mls gaskets? .I have a stroked 440 to 500ci with indy 440-1 aluminum head with 13.25 compression. When i ran cast iron indy heads I used the felpro1009 with no problems but when i switched to aluminum indy I started using cometic .