Inliners International Forums General Discussion Engines max timing ?? 302GMC

Hi Inliners, any one know the appox max advance a 320 jimmy likes. I'am running it at 38 deg's now with no ping.

My 320 cid GMC (9:1 compression and HEI) recently ran for the first time. In a week on the dyno it was running well at 40 degrees advance with no pinging on 94 octane premium gasoline.

God's Peace to you.

d

Thanks Don. How much h.p did your 320 make & at what r.p.m? Thanks
Ron

The best run was 265 hp at 4390 rpm. More significantly, it pulled 362.3 foot-pounds of torque at 3050 rpm. It is what was called in the 1950s a "hot road job," and it will power a 1952 Chevrolet two-door that is still a year or more away from the road.

i am sending a full report with pictures to the 12-Port News, when i can get it done.

God's Peace to you.

d