Re: Daily Driver 383
Not sure if I can give you good advice since you want to run 87 octane.
Maybe dial back the timing on a combo I run.
I use a 10 to 1 compression 383 in my Dads 67 Chevelle. Car is a 4 speed with 3.55 gears and 27" tires.
I use a Harold Brookshire lobe, its a older lobe now, Harold passed away a few years back. Its 280/288 and 226/234 @ .050. I had it ground on a 108 lsa and installed it at 104 icl. Lift is .530/.530 on a 1.5 roller rockers. Cranking compression is right around 200 psi.
I used Edelbrock RPM intake a Holley 3310 for intake and carb. I used 1 3/4" headers as well.
The heads are a set of old Dart Conquest 200 heads that have been ported and have a 2.08 valve...kind of big for the street. I would use a 180 or 190 head for a street build if I could with 2.02 valves.
Timing is 18* with a 16* mechanical advance for a total of 34* at 2100 rpms. I run a can that adds 12* at idle for a total of 30*.
Runs nice and cool with a aluminum rad and dual fans that pull 2500 cfm with a 160 thermostat.
Let me know if I can be of any more help.
67 chevelle malibu / SS/ custom
Currently undergoing a metal work to remove all rust, if I ever get there.
Cant decide on prostreet or cruiser with a 4 speed.