tinner

I have a relatively fresh 350 Olds that has had some performance work done to it.
#5 heads w/mild port work (clean up and bowl blending)
Larger valves
comp XE284 cam
roller tip rockers
Recurved HEI
9.8:1 compression
RPM intake
Headers
Holley 770 street avenger carb

I don't know what baseline I should time this thing at and also, I would imagine that the carb is probably somewhat fat for this. If anyone has some input, it would be great. I am in Wisconsin. If there were any specs on the recurve...I never got them as the prior owner had that done. Thanks

380 Racer

That combo sounds pretty good to me. That 770 should work fine.IMO I would start about 10-12* advance and have it come in with a total of 32-36*. I had one set-up that liked 40* total, so you just have to try and see.

tinner

Thanks much!

cutlassefi

You have a lot of cam for that size motor and compression ratio.
I'd start with16 or so initial with 36 or so at 3000. Hope you have a 3.90 or better gear.