489ci tow build...

[bucket]

Bucket~The 280 TFS heads are bad to the bone. Eric W... a famous head porter and youtube tested a line of oval heads and the AFR 265 and TFS 280 head makes the best torque in the imdusty hands down. Now you got me thinking about that youtube video/channal.

On the pistons... how much compression can we run MAX and get away with 87 octane ? Gas stations are not consistent and we have to think about detonation...

Yes, I have been watching Eric W's videos a bunch lately.

As for compression, generally speaking aluminum heads will dissipate heat faster and allow for more compression. I've never been fortunate enough to run aluminum heads on a big block (or even a truck) but I have run them on a torquey small block in my Camaro. I run a manual trans and lugging it down in hot weather, I have not experienced detonation. It's been 20+ years since I built it and I don't recall the compression ratio. I think it's close to 10:1.