I have a 1969 firebird 350 with #092 heads. I found that these were heads found on a 1966 389 and 421 motors. My question is, is this a good combo? I'm worried the bigger heads with cause lower compression.
The 092 heads have really small chambers. Will actually raise the 350 compression. Should run great.I have a 1969 firebird 350 with #092 heads. I found that these were heads found on a 1966 389 and 421 motors. My question is, is this a good combo? I'm worried the bigger heads with cause lower compression.